Frontier Research Institute for Interdisciplinary Sciences
Tohoku University

Call for Applications: Assistant Professor Positions (EMCRs for International Research Excellence) at Frontier Research Institute for Interdisciplinary Sciences, Tohoku University (Starting in FY2026)   Call for Applications (PDF version)   The information session (June 13, 2025) has ended. The recording of the session (excluding the Q&A part) and the questions and answers are now available. Recording of the information session 1. Introduction of FRIS 2. Notes on the call for application 3. Message from current faculty members Questions and answers   Recruitment: Tenure-track Assistant Professors (PIs) at the Frontier Research Institute for Interdisciplinary Sciences   Summary: Position: Assistant Professor (PI) Number of Positions 7 Job type: Tenure-track (7-year fixed term) A tenure review will be conducted between the third and fifth year after the initial appointment. If successful, the candidate will be promoted to Associate Professor (tenured). If unsuccessful, the candidate will continue in the current position until the end of the 7-year term (reappointment is not possible). Location: Frontier Research Institute for Interdisciplinary Sciences 6-3 Aramaki aza Aoba, Aoba-ku, Sendai, Miyagi, Japan Qualifications: Those who have a doctoral degree upon taking up the post Those who are eager to actively participate in interdisciplinary research Those who can manage a laboratory as Principal Investigator (PIs) and explore original research topics Those who have distinguished research achievements in their own field of expertise Those who have abilities to communicate in English We welcome applications from diverse individuals in terms of expertise, gender, nationality, and culture. Submission: Application website https://rct5osp.fris.tohoku.ac.jp/ Opens: Monday, June 16, 2025, at 12:00 (noon) (JST) Application Deadline: Wednesday, July 16, 2025, at 12:00 (noon) (JST) Starting Employment: April 1, 2026   For questions contact The Frontier Research Institute for Interdisciplinary Sciences, Managing and Planning Division, Person in charge of human resources E-mail: kikaku-hr-contact _atmk_ fris.tohoku.ac.jp（Please replace "_atmk_" with "@".）         Recruitment Tenure-track assistant professors (PIs) at Frontier Research Institute for Interdisciplinary Sciences 1. Overview The Frontier Research Institute for Interdisciplinary Sciences (FRIS), Tohoku University, is seeking qualified candidates for the position of assistant professor. The selected individuals will belong to the Creative Interdisciplinary Research Division and, as Principal Investigators (PIs) of the University for International Research Excellence, will be engaged in research activities focused on one of the following areas, including all disciplines: 1) Materials and Energy, 2) Life and Environment, 3) Information and Systems, 4) Devices and Technology, 5) Human and Society, or 6) Advanced Basic Science, and interdisciplinary research activities within and outside of the area. # Tohoku University’s accreditation as a University for International Research Excellence: https://www.tohoku.ac.jp/research_excellence/   This recruitment is being carried out based on the New Human Resource Strategies of FRIS under the University for International Research Excellence and FRIS’s "Frontier Researchers for Interdisciplinary Sciences Shoshi Program (FRIS Shoshi Program)."   In the "FRIS Shoshi Program," we support the promotion of world-class research and career advancement in an independent research environment as a research principal investigator (PI) with the cooperation of graduate schools, research institutes and so on across the university and mentors in an interdisciplinary research environment. This will foster researchers with advanced interdisciplinarity and research capabilities who will lead the next generation. # New Human Resource Strategies of FRIS: https://www.fris.tohoku.ac.jp/media/files/topics/recruit/NewHRStrategies_20241028_EN.pdf # FRIS Shoshi Program: https://www.fris.tohoku.ac.jp/en/about/missions/fostering.html 2. Qualifications & Submissions Qualifications Due to the nature of the position, candidates must have a doctoral degree upon taking up the post and have abilities to communicate in English. Distinguished research achievements in one of the following areas: 1) Materials and Energy, 2) Life and Environment, 3) Information and Systems, 4) Devices and Technology, 5) Human and Society, and 6) Advanced Basic Sciences, and willingness to actively engage in interdisciplinary research within and outside of the area will be evaluated by the selection committee.   This position is intended for early-to-mid-career researchers (EMCRs). Candidates who obtained their Ph.D. within the last 10 years will receive prioritized consideration during the selection process. Appropriate consideration will be given to career interruptions due to life events.   Assistant professors (PIs) at the Frontier Research Institute for Interdisciplinary Sciences are expected to exemplify the following principles of interdisciplinarity, independence and excellence in their research endeavors.    Interdisciplinarity FRIS researchers, while experts in their respective fields, exchange ideas regularly with colleagues from other disciplines and participate actively in interdisciplinary research. Independence FRIS researchers lead a laboratory as Principal Investigators (PIs) and explore original research topics. Excellence To exemplify international excellence in research, FRIS researchers engage in projects with a significant academic or societal impact. In accordance with the Institute's basic policy of promoting DEI, we actively welcome applications from people with diverse expertise, gender, nationality, and culture. Required Documents Please enter the applicant’s resume information and information about researcher ID (Scopus Author ID, ORCID iD, researchmap URL), and information about four referees (two or more of whom must be from outside Japan) into the application website, and then convert the following documents into PDF files and apply according to the procedure in "How to Apply." For (3) and (4), please use the forms specified by the Institute. The total file size should not exceed 20 MB. The forms can be downloaded from the website below: https://www.fris.tohoku.ac.jp/en/recruit/invitation/   (1) Curriculum Vitae with a list of research achievements (research achievements should include papers, books, international conference proceedings, conference presentations (clearly distinguishing between domestic and international, and contributed and invited presentations), awards, industrial property rights, social contribution activities, competitive research funding, collaborative research achievements, and other notable items) (Language: English + Japanese or English. May be disclosed to reviewers inside and outside the university.) (2) Description of up to five major papers or up to five major achievements (If there are any numerical indicators that show that the paper or achievement is excellent, please explain them appropriately. Copies of papers and achievements do not need to be submitted.) (Language: Japanese or English) (3) Research activity plan (8 pages in the specified format) (Language: Japanese or English) (4) Self-evaluation report on research performance (2 pages in the specified format) (Language: Japanese or English)   How to apply Please apply via the application website below. After completing the pre-registration, you will receive a URL to complete your official registration, and then upload the documents you wish to submit via My Page. Once the upload is complete, you will receive an email confirming receipt of your application. # Application reception website: https://rct5osp.fris.tohoku.ac.jp/   You can also access the above website from the recruitment information on Frontier Research Institute for Interdisciplinary Sciences’ website below: https://www.fris.tohoku.ac.jp/en/   Application period Opens: Monday, June 16, 2025, at 12:00 (noon) (JST) Deadline: Wednesday, July 16, 2025, at 12:00 (noon) (JST) 3. Selection The selection committee will conduct the selection process through a first screening based on submitted documents and a second screening based on an interview. The interview will be conducted for successful candidates on one of the days between October 10 and 20, 2025, either onsite (recommended) at the Frontier Research Institute for Interdisciplinary Sciences or online. Successful candidates in the first screening will be notified of details by early September 2025.   Employment will start at the earliest date after April 1, 2026. 4. Allocation, Laboratory Space & Accommodation Successful individuals will be allocated the following research spaces: Space in the mentor's laboratory Upon successful application, space (room and laboratory) to conduct your own research will be provided in the mentor's laboratory (discuss with your mentor professor at the time of application) Space at the Frontier Research Institute for Interdisciplinary Sciences As research progresses, necessary research space will be allocated within the institute as appropriate. Space at FRIS CoRE (Cooperative Research Environment) FRIS CoRE, an interdisciplinary collaborative environment under one roof that provides access to basic research facilities in the fields of life science, chemistry, and engineering has been established. FRIS CoRE allows you to conduct a series of daily experiments, discussions and research in fields other than the mentor professor's specialty. # FRIS CoRE (status, etc.): https://www.fris.tohoku.ac.jp/fris_core/en/ There may also be the opportunity to move into university accommodation if there are any vacancies. 5. Compensation & Benefits The annual salary for the appointment will be determined in accordance with Tohoku University’s employment regulations and will be based on the experience and performance of the candidate. The gross annual salary will be approximately 8.1 million JPY in the fifth year after obtaining a doctoral degree. 6. Special Funding & Duties The recruitment is part of the university-wide effort to increase research activities on campus as University for International Research Excellence. As such, selected individuals will be provided with the following funding as a basis for research operations: Basic research funds (including start-up funds allocated only in the first year of appointment) Basic research funds will be allocated based on application, up to a total of 22.5 million JPY over seven years (12.5 million JPY in the first year of appointment; 2.5 million JPY each in the second and third years; 2.0 million JPY in the fourth year; 1.5 million JPY in the fifth year; 1.0 million JPY in the sixth year; and 0.5 million JPY in the seventh year; flexible use is allowed through carryover). Specific research funds Specific research funds will be allocated up to 3.0 million JPY per year (for designated purposes only), including expenses for hiring assistant staff (up to 1.0 million JPY), expenses for international collaborative research (up to 1.0 million JPY), and expenses for research space (up to 1.0 million JPY). Funds for collaborative research with researchers in other fields, expenses for organizing international conferences, etc. may be provided upon review.   You will be required to apply for additional external competitive funding such as Grants-in-Aid for Scientific Research, peer-reviewed grants and other third-party funding, including funding and income from industry collaborations and endowed research.   The selected individual is expected to produce several high impact publications. # Research System Strengthening Plan as University for International Research Excellence: https://www.tohoku.ac.jp/japanese/newimg/newsimg/news20241224_ex_01_en.pdf   A tenure review will be conducted between the third and fifth year after the initial appointment. If successful, the candidate will be promoted to Associate Professor (tenured). If unsuccessful, the candidate will continue in the current position until the end of the 7-year term (reappointment is not possible). # Tenure track system at FRIS: https://www.fris.tohoku.ac.jp/en/about/tenure-track.html   If a tenure-track researcher takes childcare leave, their term may be extended to reflect the duration of their leave, and the tenure review and termination of appointment may be postponed if deemed necessary for teaching and research. 7. Welfare Successful individuals will be enrolled as a member of the Ministry of Education, Culture, Sports, Science and Technology Mutual Aid Association which will also provide health insurance for any dependents. Tohoku University will also provide pension insurance, employment insurance as well as industrial accident compensation insurance. 8. Annual Paid Leave Employees are entitled to twenty days annual paid leave per year. The number of days provided is reckoned as of January 1st. Each year, twenty days are added to any remaining paid leave from the previous calendar year (up to twenty days). Annual leave for the first year of employment is calculated based on the start date (e.g., a start date of April 1st would provide 15 days for the remaining nine months of the calendar year). 9. Additional Information Research areas Applicants should select one of the six research fields listed in the "Qualification" above and enter it in the research activity plan. However, the selection committee may decide to change the research field to be reviewed.   Mentors In order to conduct their own research as a Principal Investigator (PI), applicants must select a mentor whose duties include providing research space and research support and apply for the position. Applicants must select a mentor from among professors or associate professors (visiting or specially appointed faculty members are not accepted) of the University in advance, obtain the mentor's consent to the Internal Regulations on the Mentors below and their responsibilities as attached, and both the applicant and the mentor must review the Checklist for Internal Regulations on the Mentors of the Frontier Research Institute for Interdisciplinary Sciences.   When selecting a mentor, the Institute places importance on starting research in a new research environment, such as a laboratory different from the one they have previously belonged to. If an applicants must select a mentor from a laboratory where they have previously belonged, it is essential that their independence as a Principal Investigator (PI) is guaranteed. # Internal Regulations on the Mentors and the Responsibilities of Mentors: https://www.fris.tohoku.ac.jp/media/files/MentorRegulations_rev20250324_EN.pdf # Checklist for Internal Regulations on the Mentors: https://www.fris.tohoku.ac.jp/media/files/Mentor_Checklist_20240530.pdf   When selecting a mentor, you can also refer to the Tohoku University researcher introduction website at the following URL. # Tohoku University researcher Introduction: https://www.r-info.tohoku.ac.jp/   Research environment The main job of faculty in the Creative Interdisciplinary Research Division is research, with some administrative duties, but the institute ensures that there is enough time for research, and the research effort of currently enrolled faculty is at a high level of about 70%. Faculty members can flexibly set their research time at their own discretion, making it possible to achieve a work-life balance according to their own plans.   Educational environment Initially, there will be no student assignment or teaching duties at the Frontier Research Institute for Interdisciplinary Sciences. The university is currently considering establishing a system whereby students may be assigned to assistant professors (PIs) of their choice. Please consult with your mentor regarding research guidance for students in their mentor laboratories.   At the Frontier Research Institute for Interdisciplinary Sciences, faculty members hire undergraduate students from our university who are interested in research as administrative assistants to the extent that it does not interfere with their studies, to operate laboratories and advance research, provide students with opportunities to experience cutting-edge research, and implement use the "Undergraduate Student Research Work Experience (FRIS URO)" as an initiative aimed at providing students with diverse research experience and financial support, and we encourage its use. # FRIS URO: https://www.fris.tohoku.ac.jp/recruit/fris-uro/ 10. For questions contact Person in Charge of Human Resources, Managing and Planning Division, Frontier Research Institute for Interdisciplinary Sciences E-mail: kikaku-hr-contact _atmk_ fris.tohoku.ac.jp（Please replace "_atmk_" with "@".） 11. DEI Promotion The Frontier Research Institute for Interdisciplinary Sciences has established a basic policy for promoting Diversity, Equity & Inclusion (DEI), set up a working group, and aims to be a leading research institute in DEI. We are working to create and support an environment in which all researchers and staff can smoothly conduct research, education, and work. # The Frontier Research Institute for Interdisciplinary Sciences’ efforts to promote DEI: https://www.fris.tohoku.ac.jp/en/about/dei.html Tohoku University has established a support system to assist the spouses of qualified faculty members in finding employment opportunities for academic and non-academic jobs within the university. For more information, please contact the recruiting department. Tohoku University promotes activities to increase Diversity, Equity and Inclusion (DEI) and encourages people of varied talents from all backgrounds to apply for positions at the university. Tohoku University’s website about the DEI Declaration can be found here: https://dei.tohoku.ac.jp/en/vision/about/ Pursuant to Article 8 of the Act on Securing, Etc. of Equal Opportunity and Treatment between Men and Women in Employment, Tohoku University shall, as a measure for increasing the presence of women among the academic staff, prioritize the hiring of women deemed qualified for each job opening, based on impartial evaluation. Tohoku University has published ‘Tohoku University-Live as Who You Are-Guidelines for Gender and Sexual Diversity' to provide explanations and details of how those at the university should respond with respect to diverse sexuality. The purpose of the guidelines is to create an environment in which all students, faculty, and staff respect diverse sexuality in their academic, research, and professional activities. Please see the Tohoku University Center for Gender Equality Promotion website: https://dei.tohoku.ac.jp/wp-content/uploads/2023/10/EN_GuideLine.pdf Tohoku University has the largest on-campus childcare system of all Japanese national universities. This network comprises three nurseries: Kawauchi Keyaki Nursery school (capacity: 22) and Aobayama Midori Nursery school (116), both open to all university employees, as well as Hoshinoko Nursery school (120), which is open to employees working at Tohoku University Hospital. In addition, Tohoku University Hospital runs a childcare room for mildly ill and convalescent children which is available to all university employees. See the following website for information on these and other programs that Tohoku University runs to assist work-life balance, to support researchers, and to advance gender equality, including measures to promote childcare leave among male employees. Center for Diversity, Equity, and Inclusion, Tohoku University Website: https://dei.tohoku.ac.jp/en/vision/consulting/for_family/ Human Resources and Planning Department website: https://c.bureau.tohoku.ac.jp/jinji-top/external/a-4-kosodate/ 12. Other information An information session for this call will be held online on Friday, June 13, 2025, from 13:00 to 14:00 (JST). If you would like to participate, please apply via the form below. # Registration for information session: https://us02web.zoom.us/meeting/register/6yUgu0jlR8CfVQXWQskBoQ    

A new study led by researchers at Tohoku University, with first author Dr. Aakanksha Sud from the Frontier Research Institute for Interdisciplinary Sciences (FRIS), has demonstrated strong nonlinear interactions between magnetic waves—known as magnons—in a symmetric synthetic antiferromagnet.   By applying high-power microwave signals, the research team activated a three-magnon mixing process, where a high-frequency optical magnon interacts nonlinearly with two low-frequency acoustic magnons. This interaction leads to Rabi-like splitting of the resonance—a signature of strong mode coupling—achieved without breaking the material’s structural or magnetic symmetry.   “In most prior systems, strong nonlinear coupling required symmetry breaking through complex design or field alignment,” said Dr. Sud. “Our work shows that even symmetric systems can host robust nonlinear dynamics when driven electrically.”   This discovery paves the way for synthetic antiferromagnets to serve as a tunable platform for wave-based computing, spintronic logic, and potentially quantum magnonics under cryogenic conditions. The results, published in Physical Review Letters and selected as an Editor’s Suggestion, open exciting possibilities for energy-efficient spin-based technologies.   Figure: Nonlinear three-magnon processes in synthetic antiferromagnets. Left: A symmetric synthetic antiferromagnet composed of two ferromagnetic layers. Center: Acoustic and optical magnon modes interact via nonlinear three-wave coupling. Right: As input power increases, Rabi-like mode splitting emerges, governed by the nonlinear coupling strength g3.   Publication Details Title: Electrically Controlled Nonlinear Magnon-Magnon Coupling in a Synthetic Antiferromagnet Authors: A. Sud, K. Yamamoto, S. Iihama, K. Ishibashi, S. Fukami, H. Kurebayashi, and S. Mizukami Journal: Physical Review Letters DOI: 10.1103/sc6y-rxbg URL: https://journals.aps.org/prl/abstract/10.1103/sc6y-rxbg  

Outline We invite research additional proposals for interdisciplinary themes and subjects by young researchers for the “Creative Interdisciplinary Collaboration Program”. All submitted proposals will be reviewed by the FRIS committee. We encourage you to apply with original ideas and new perspectives.   Research budget 1,000,000 yen for each fiscal year.   Eligible research group for application A research group must consist of at least two members. The principal researcher must be an assistant professor affiliated with FRIS. We strongly encourage collaborative research among FRIS researchers as well as between FRIS and TI-FRIS researchers.   Eligibility and How to apply Principal researcher (Research representative) should be an assistant professor in FRIS. Applicants should fill in the application form (A4 2 pages) and follow directions. Upload the PDF file through the following URL: URL: https://forms.gle/3m4BHKd3wT41QBXPA  Deadline June 24th 2025, 17:00.   For details please see the application guidelines.   Guidelines（PDF） Application（word） Contact Prof. Saida, (call extension 92-5752 or e-mail to @ ) Ms. Kuriyakawa, (call extension 92-5755 or e-mail to @).

Outline We invite research proposals for interdisciplinary themes and subjects by young researchers for the “Creative Interdisciplinary Collaboration Program (Collaboration with Alumni)” in order to promote interdisciplinary research with our alumni. All submitted proposals will be reviewed by the FRIS committee. We encourage you to apply with original ideas and new perspectives.   Research budget 1,000,000 yen for each fiscal year.   Eligible research group for application A research group must consist of at least two members of FRIS faculty and our alumni. The principal researcher must be an FRIS faculty member. We especially encourage collaborative research with alumni from different fields. We will also give priority to applications led by an assistant professor from the Creative Interdisciplinary Research Division.   Eligibility and How to apply Principal researcher (Research representative) should be an assistant professor in FRIS. Applicants should fill in the application form (A4 2 pages) and follow directions. Upload the PDF file through the following URL: URL: https://forms.gle/3m4BHKd3wT41QBXPA  Deadline June 24th 2025, 17:00.   For details please see the application guidelines.   Guidelines（PDF） Application（word） Contact Prof. Saida, (call extension 92-5752 or e-mail to @ ) Ms. Kuriyakawa, (call extension 92-5755 or e-mail to @).

 What if there was an efficient method to produce a viable, environmentally friendly alternative to fossil fuels using the power of sunlight? A significant discovery by researchers at Tohoku University and the University of Science, Vietnam National University - Ho Chi Minh City (VNU-HCM) could bring us one step closer. The team identified critical factors in two-dimensional (2D) Janus heterobilayers for green energy conversion. Among the investigated materials, a WS₂-SMoSe heterobilayer stood out, with an impressive solar-to-hydrogen conversion efficiency of 16.62%, surpassing many existing materials, most of which have efficiencies below 15%.   Photocatalytic water splitting harnesses sunlight to break down water molecules into hydrogen and oxygen. This clean hydrogen fuel can power vehicles and homes, significantly reducing greenhouse gas emissions and helping to combat global warming. However, traditional materials face substantial challenges in photocatalysis, including low efficiency and rapid electron-hole recombination. This innovation addresses those issues head-on, paving the way for a more sustainable future.   A team led by Nguyen Tuan Hung, an assistant professor at the Frontier Research Institute for Interdisciplinary Science (FRIS) at Tohoku University, and Vu Thi Hanh Thu, an associate professor at VNU-HCM, has been exploring exciting combinations of Janus and transition-metal dichalcogenide (TMDC) materials.   They examined 20 different pairings and confirmed that Janus heterobilayers are promising candidates for water splitting. Unlike traditional 2D materials, these unique Janus TMDCs feature different chalcogenide elements on each side, which creates intrinsic dipoles and strong internal electric fields. These natural electric fields enhance the separation of electric charges generated by sunlight, resulting in a significant boost in the photocatalytic performance of these materials. By uncovering the principles of atomic arrangement, we can provide definitive guidance for selecting optimal materials for photocatalytic solar conversion.   "Combining TMDCs with Janus layers is akin to building with LEGO – there are almost countless configurations to try. Our methodology allows us to efficiently and precisely identify the most promising material combinations for water splitting, dramatically speeding up the discovery process," asserted first author Nguyen Tran Gia Bao (VNU-HCM).   “Our findings offer a fresh perspective on sustainable hydrogen production, supporting both environmental protection and energy independence,” stated Nguyen Tuan Hung. “The team is committed to exploring further combinations of materials in future research to discover the most sustainable option out there.” Lead author Nguyen and his colleagues published their findings on April 10, 2025 in ACS Applied Energy Materials. Caption: Designing 2D Janus heterobilayers for efficient water splitting. The unique Janus structure with an internal electric field enhances photocatalytic performance. The blue arrow indicates that the optimized conditions for water splitting (e.g., carrier mobility, catalyst surface, etc.) can be achieved by rationally designing 2D heterobilayers like LEGO bricks.  ©Nguyen Tuan Hung et al.   <Publication Details> Title: Rational Design 2D Heterobilayers Transition-Metal Dichalcogenide and Their Janus for Efficient Water Splitting     Authors: Nguyen Tran Gia Bao, Ton Nu Quynh Trang, Nam Thoai, Thang Bach Phan, Vu Thi Hanh Thu, Nguyen Tuan Hung Journal: ACS Applied Energy Materials DOI: https://doi.org/10.1021/acsaem.5c00175     <Contact> Nguyen Tuan Hung Frontier Research Institute for Interdisciplinary Sciences (FRIS) Email: nguyen.tuan.hung.e4*tohoku.ac.jp (Please replace "*" with "@".) Website: https://nguyen-group.github.io/   Press Release: Tohoku University https://www.tohoku.ac.jp/en/press/designing_the_future_of_clean_energy_janus_heterobilayers_lead_the_way.html  

Our universe is filled with cosmic rays, high-energy protons and atomic nuclei. However, where and how these cosmic rays are accelerated remains one of the major unsolved mysteries in astrophysics. One of the most promising candidates for the origin of cosmic ray acceleration is supernova remnants—structures left behind after supernova explosions. It is believed that cosmic rays are accelerated by shock waves formed when the matter ejected during a supernova collides with the surrounding interstellar gas. Recent observations of supernova explosions have revealed that extremely dense circumstellar material ubiquitously exists around exploding stars. When the ejected matter from the supernova collides with this dense material, strong shock waves are generated, which can accelerate cosmic rays. These accelerated cosmic rays then interact with the dense circumstellar material, producing gamma rays and neutrinos. By observing these gamma rays and neutrinos, we may be able to identify the sites and mechanisms of cosmic ray acceleration.   A research team, Shigeo KIMURA at FRIS, Tohoku University and Takashi MORIYA at Division of Science, NAOJ, developed a new method to calculate neutrino and gamma-ray emissions produced when a supernova explosion interacts with dense circumstellar material. Applying this method to SN 2023ixf—a supernova that occurred in a nearby galaxy in 2023—they succeeded in placing constraints on the efficiency of cosmic ray production. Using radiation-hydrodynamic simulations, the team reproduced the structure of the circumstellar material and the ejecta from the explosion that matched optical observations of SN 2023ixf. Based on this simulation data, they constructed a framework to compute gamma-ray and neutrino emissions. The calculations revealed that if the cosmic ray production efficiency were greater than 10%, it would contradict the fact that current gamma-ray telescopes did not detect any signals from SN 2023ixf. This method will be applied to multiple supernovae in the future, potentially revealing the efficiency of cosmic ray production at shock fronts.   These results were published in The Astrophysical Journal on May 2nd, 2025. Figure: SN 2023ixf appeared in the Pinwheel Galaxy. Credit:International Gemini Observatory/NOIRLab/NSF/AURA Image Processing: J. Miller (Gemini Observatory/NSF NOIRLab), M. Rodriguez (Gemini Observatory/NSF NOIRLab), M. Zamani (NSF NOIRLab), T.A. Rector (University of Alaska Anchorage/NSF NOIRLab) & D. de Martin (NSF NOIRLab). Publication information Title: High-energy gamma-ray and neutrino emissions from interacting supernovae based on radiation hydrodynamic simulations: a case of SN 2023ixf Authors: Shigeo S. Kimura, Takashi J. Moriya Journal: The Astrophysical Journal DOI: 10.3847/1538-4357/adc716 URL: https://iopscience.iop.org/article/10.3847/1538-4357/adc716 Press Release: Division of Science, NAOJ https://sci.nao.ac.jp/main/en/highlights-en/highlight20250507

Scientists are racing against time to try and create revolutionary, sustainable energy sources (such as solid-state batteries) to combat climate change. However, this race is more like a marathon, as conventional approaches are trial-and-error in nature, typically focusing on testing individual materials and set pathways one by one. To get us to the finish line faster, researchers at Tohoku University, including Dr. Linda Zhang of FRIS, developed a data-driven AI framework that points out potential solid-state electrolyte (SSE) candidates that could be "the one" to create the ideal sustainable energy solution.   This model does not only select optimal candidates, but can also predict how the reaction will occur and why this candidate is a good choice - providing interesting insights into potential mechanisms and giving researchers a huge head start without even stepping foot into the lab.   These findings were published in Angewandte Chemie International Edition on April 17, 2025. Figure 1: Big data-driven AI analysis of hydride SSEs. (A) Left: Temperature profiles of the ionic conductivity of all types of SSEs extracted from available experimental data reported to date. Right: Computational Ea values obtained using different methods for all types of SSEs reported to date. (B) Temperature profiles of the ionic conductivity of hydride SSEs extracted from available experiments reported to date. Point size represents the Ea value, with larger points indicating higher Ea. (C) Benchmarking analysis between experimental Ea and the computational Ea from different methods (D) Schematic diagram of the proposed workflow to develop high-performance SSE. ©Qian Wang et al. "The model essentially does all of the trial-and-error busywork for us," explains Professor Hao Li (Advanced Institute for Materials Research). "It draws from a large database from previous studies to search through all the potential options and find the best SSE candidate." The method is a pioneering data-driven AI framework which integrates large language models (LLMs), MetaD, multiple linear regression, genetic algorithm, and theory-experiment benchmarking analysis. Essentially, the predictive models draw from both experimental and computational data. Computation-assisted research gives researchers a solid lead for which avenue might have the most successful outcome.   A goal of this study was to understand the structure-performance relationships of SSEs. The model predicts activation energy, identifies stable crystal structures, and improves the workflow of scientists overall. Their findings demonstrate that ab initio MetaD represents an optimal computational technique that shows high levels of agreement with experimental data for complex hydride SSEs.   Figure 2: Experimental and simulated cation migration barriers of hydride SSEs. (A) Typical cations, anions, and neutral molecules in hydride SSEs. (B) Comparison between experimental Ea and the simulated Ea from MetaD simulations, for structures with (filled icons) and without (half-filled icons) neutral molecules. (C) Snapshots of MetaD simulations of Mg(BH4)2·2NH3. (D) The projected spatial track of Mg2+ ion (Mg-track project) during the simulations. (E-F) The unit structure (E) and migration process (F) of Mg(BH4)2·2NH3 and LiBH4·NH3. (G) The potential energy surface of Mg(BH4)2·2NH3 captured by MetaD simulations. ©Qian Wang et al. Moreover, they identified a novel "two-step" ion migration mechanism in both monovalent and divalent hydride SSEs arising from the incorporation of molecular groups. Leveraging feature analysis combined with multiple linear regression, they successfully constructed precise predictive models for the rapid evaluation of hydride SSE performance. Notably, the proposed framework also enables accurate prediction of candidate structures without relying on experimental inputs. Collectively, this study provides transformative insights and advanced methodologies for the efficient design and optimization of next-generation solid-state batteries, significantly contributing toward sustainable energy solutions.   The researchers plan to broaden the application of this framework across diverse electrolyte families. They also foresee a use for generative AI tools that may be able to explore ion migration pathways and reaction mechanisms, thus improving the predictive capacity of the platform.   The key experimental and computational results are available in the Dynamic Database of Solid-State Electrolyte (DDSE) developed by Hao Li's team, the largest solid-state electrolyte database reported to date.     Figure 3: Correlation analysis between the migration Ea of hydride SSEs and theoretical descriptors. (A) Feature analysis with the calculated coefficient of determination (R2) for the considered eight properties against the Ea, including the volume of a unit cell per formula unit (V), Pauling electronegativity (X), atomic number of the system (Z), the binding energy of a moving cation (bm), anion distance (d), number of the neutral molecules (n), atomic radius (ratom), and ionic radius (rion). (B) Multiple linear regression for divalent SSEs with neutral molecules. ©Qian Wang et al. Publication Details: Title: Unraveling the Complexity of Divalent Hydride Electrolytes in Solid-State Batteries via a Data-Driven Framework with Large Language Model Authors: Qian Wang, Fangling Yang, Yuhang Wang, Di Zhang, Ryuhei Sato, Linda Zhang, Eric Jianfeng Cheng, Yigang Yan, Yungui Chen, Kazuaki Kisu, Shin-ichi Orimo, Hao Li* Journal: Angewandte Chemie International Edition DOI: https://doi.org/10.1002/anie.202506573 Press Release: Tohoku University https://www.tohoku.ac.jp/en/press/how_can_we_optimize_ssbs_try_asking_ai.html Advanced Institute for Materials Research (WPI-AIMR) https://www.wpi-aimr.tohoku.ac.jp/en/achievements/press/2025/20250430_001967.html Institute for Materials Research https://www.imr.tohoku.ac.jp/en/news/results/detail---id-1743.html  

Actinomycetes are an important group of microorganisms in drug discovery and industry, known for their ability to produce beneficial compounds, including antibiotics. The production of these compounds is regulated by signaling molecules (self-regulatory molecules). These signaling molecules play a crucial role in the exceptional biosynthetic capabilities of actinomycetes; however, only a few have been clearly identified. One reason for this is that signaling molecules are produced at extremely low concentrations, making their analysis highly labor-intensive. In this study, FRIS Associate Professor Yuta Kudo and his group have developed two original methods for the rapid identification of signaling molecules: By co-culturing actinomycetes with a resin (adsorbent) that enhances the production of signaling molecules, they successfully isolated and determined the structure of these molecules at a scale 1/100 of conventional methods. They established a chemo-enzymatic synthesis method by combining organic synthesis with enzymatic reactions utilizing biosynthetic enzymes from actinomycetes. This method enabled the efficient synthesis of signaling molecules and their rapid identification from various actinomycetes employing 12 synthetic standards. Furthermore, this research marks the first discovery of optical isomers of signaling molecules from actinomycetes. By elucidating the structural diversity and distribution of these molecules, the study expands our understanding of the regulatory mechanisms governing secondary metabolism in actinomycetes. Moving forward, these findings are expected to contribute to the increased production of valuable compounds and the discovery of novel bioactive substances. The results of this study have been published in RSC Chemical Biology, a journal of the Royal Society of Chemistry (RSC), and were made available online as an early release on February 25, 2025. The paper is open access. Publication Details: •Title: Establishment and Demonstration of a Rapid Identification Method for Microbial Signaling Molecules Regulating Compound Production •Author: Yuta Kudo*, Keiichi Konoki and Mari Yotsu-Yamashita (*corresponding author) •Journal: RSC Chemical Biology •DOI: 10.1039/d5cb00007f •URL: https://pubs.rsc.org/en/content/articlelanding/2025/cb/d5cb00007f

Researchers at Tohoku University have developed a groundbreaking titanium-aluminum (Ti-Al)-based superelastic alloy. This new material is not only lightweight but also strong, offering the unique superelastic capability to function across a broad temperature range—from as low as –269°C, the temperature of liquid helium, to +127°C, which is above the boiling point of water. This discovery holds significant potential for a variety of applications, including those in space exploration and medical technology.   Figure 1: Lightweight flexible alloy developed in this study. Sheng Xu, an Assistant Professor at Tohoku University’s Frontier Research Institute for Interdisciplinary Sciences, emphasized the importance of the alloy’s wide operational temperature range. "This alloy is the first of its kind to maintain superelasticity at such an extreme range of temperatures while remaining lightweight and strong, which opens up a variety of practical applications that were not possible before. The alloy's properties make it ideal for future space missions, such as creating superelastic tires for lunar rovers to navigate the extreme temperature fluctuations on the Moon’s surface." The alloy’s flexibility at extremely low temperatures makes it a promising material useful at liquid hydrogen environment, holding promise for applications in the forthcoming Hydrogen Society and various other industries. Of course, the alloy can be used in everyday applications requiring flexibility, such as medical devices like stents.   Figure 2: Stress-strain curves at various temperatures for the Ti-Al-Cr superelastic alloy. The surface temperature ranges of Earth, Mars and Moon are also shown. Currently, most shape-memory alloys—materials capable of regaining their original shape after force is removed—are limited to specific temperature ranges. The new Ti-Al-based alloy overcomes this limitation, offering wide applicability in fields that require materials with exceptional strength and flexibility, from space exploration to everyday medical tools. The research team employed advanced techniques such as rational alloy design and precise microstructure control. By using phase diagrams, the researchers were able to select alloy components and their proportions. Additionally, they optimized processing and heat treatment methods to achieve the desired material properties. The implications of this study extend beyond immediate practical applications. "This discovery not only sets a new standard for superelastic materials but also introduces new principles for material design, which will undoubtedly inspire further breakthroughs in materials science," Xu added.   Details of the breakthrough were published in the journal Nature on February 26, 2025.   Figure 3: A comparison between Ti-Al-Cr alloy and other superelastic alloys in terms of lightness and operational temperature range.   Publication Details: Title: A lightweight shape-memory alloy with superior temperature-fluctuation resistance Authors: Yuxin Song#, Sheng Xu#*, Shunsuke Sato, Inho Lee, Xiao Xu, Toshihiro Omori*, Makoto Nagasako, Takuro Kawasaki, Ryoji Kiyanagi, Stefanus Harjo, Wu Gong, Tomáš Grabec, Pavla Stoklasová, Ryosuke Kainuma* Journal: Nature DOI: 10.1038/s41586-024-08583-7   Press Release: Tohoku University https://www.tohoku.ac.jp/en/press/a_lightweight_flexible_alloy_for_extreme_temperatures.html School of Engineering, Tohoku University https://www.eng.tohoku.ac.jp/english/news/detail-,-id,3130.html J-PARC Center https://www.j-parc.jp/c/en/press-release/2025/02/27001478.html

As the world moves toward sustainable energy, hydrogen will likely play an invaluable role as a clean and versatile fuel. Yet, adoption of hydrogen technologies hinges on overcoming key challenges in electrocatalysis, where costly and scarce platinum-group metals have long been the industry standard. Taking one step to rectify this, a research team including Assistant Professor Linda Zhang from FRIS has now developed a new strategy that fine-tunes electronic interactions at the atomic level. The study introduces an innovative electronic fine-tuning (EFT) approach to enhance the interactions between zinc (Zn) and ruthenium (Ru) species, resulting in a highly active and stable catalyst for both the oxygen reduction reaction (ORR) and hydrogen evolution reaction (HER). By anchoring Ru clusters onto hierarchically layered Zn-N-C nanosheets (denoted as Ru@Zn-SAs/N-C), the team has designed a material that outperforms commercial platinum-based catalysts. "Our work demonstrates how precise control over electronic structures can fundamentally reshape catalytic performance," says Hao Li, associate professor at Tohoku University's Advanced Institute for Materials Research (WPI-AIMR) and corresponding author of the paper. "By leveraging the synergy between Zn and Ru, we have developed a cost-effective alternative to conventional platinum catalysts, offering new possibilities for sustainable hydrogen production." Key to this breakthrough is the strong electronic metal-support interaction (EMSI) between Zn and Ru, which optimizes the adsorption energy of critical reaction intermediates. X-ray absorption spectroscopy and computational modeling confirm that this synergy shifts *OOH and *OH adsorption energies to an optimal balance, enhancing ORR efficiency. Simultaneously, Ru sites achieve near-ideal hydrogen binding free energy, placing the catalyst at the peak of theoretical HER activity. "This research is not just about replacing platinum," Li explains. "It's about understanding how electronic properties at the atomic level dictate catalytic efficiency. That knowledge allows us to design better, more accessible materials for real-world applications." (a) Schematic illustration of synthesis procedure for Ru@Zn-SAs/N-C catalysts, where the electrostatic potential diagram of the iso-surface value is 0.03 e Å-3; (b-d) SEM images with different magnification; (e) TEM image; (f-g) HRTEM images, (f) the inset is the corresponding particle-size distribution of Ru clusters and (g) the inset shows the Moiré images extracted from the FFT; (h) AC HADDF-STEM image and integrated pixel intensities; (i) AFM image and corresponding height profiles of Ru@Zn-SAs/N-C ©Hao Li et al. These findings have significant implications for the affordability and scalability of hydrogen energy. By reducing dependence on expensive platinum while improving performance, this research contributes to the development of cost-effective hydrogen fuel cells, water electrolysis systems, and sustainable industrial processes. X-ray absorption spectroscopic characterization of Ru@Zn-SAs/N-C. ©Hao Li et al. Looking ahead, the team plans to further refine the EFT strategy, improve catalyst stability under real-world conditions, and develop scalable production methods. Applications in zinc-air batteries, fuel cells, and carbon and nitrogen reduction reactions are also under investigation. The research has been made available through the Digital Catalysis Platform (DigCat), the largest experimental catalysis database to date, developed by the Hao Li Lab. Details of its findings were published in the journal Advanced Functional Materials. The article processing charge (APC) was supported by the Tohoku University Support Program. Theoretical calculation analysis. ©Hao Li et al. Publication Details: Title: Synergistic Effects of Ruthenium and Zinc Active Sites Fine Tune the Electronic Structures of Augmented Electrocatalysis Authors: Tingyu Lu, Jing Li, Jingwen Ying, Ningkang Peng, Linda Zhang, Yizhou Zhang, Di Zhang, Songbo Ye, Lin Xu, Dongmei Sun, Hao Li, Yanhui Gu, Yawen Tang Journal: Advanced Functional Materials DOI: 10.1002/adfm.202422594 Press Release: Tohoku University https://www.tohoku.ac.jp/en/press/electronic_finetuning_unlocks_superior_performance.html Advanced Institute for Materials Research (WPI-AIMR) https://www.wpi-aimr.tohoku.ac.jp/en/achievements/press/2025/20250219_001933.html