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About RIEC Introduction Message from the Director Principles, Missions, Objectives Institute Vision Organization People, Land and Buildings, Budgets History Chronology International Activities COE of International Research Collaboration How to study at RIEC Organization Computing System Platforms Division Solid State Electronics Dielectric Nano-Devices Materials Functionality Design Spintronics Nano-Integration Devices and Systems Quantum Devices Innovative Spintronic Device Computing Information Theory New Paradigm VLSI System Information Communication Platforms Division Ultrahigh-Speed Optical Communication Group Applied Quantum Optics Group Advanced Wireless Information Technology Information Storage Systems Ultra-Broadband Signal Processing Quantum-Optical Information Technology Network Architecture Environmentally Conscious Secure Information System Human and Bio Information Systems Division Electromagnetic Bioinformation Engineering Advanced Acoustic Information Systems Visual Cognition and Systems Realｰworld computing Nano-Bio Hybrid Molecular Devices Interactive Content Design Soft Computing Integrated System Research Facilities Laboratory for Nanoelectronics and Spintronics Laboratory for Brainware Systems Research Center for 21st Century Information Technology（IT-21 Center） Common Research Facilities Flexible Information System Center Fundamental Technology Center Management Office for Safety and Health Promotion Office Ad-hoc research groups Co-creation Research Center Furukawa Electric x Tohoku Univ. Co-creation Research Center for Photonics Integration Staff Cooperative Research About RIEC Cooperative Research Projects Public Invitation RIEC Nation-wide Application System List of Research Projects Description of acknowledgment RIEC Annual Meeting FY2023 RIEC Annual Meeting FY2022 RIEC Annual Meeting International Exchange International Activities COE of International Research Collaboration Information What’s New Award News Press Release Event RIEC Annual Meeting Projects Type-T (Study Groups on Electrical Communication) Lecture Symposiums Nation-wide Cooperative Study Group Archives RIEC NEWS WEB Latest version of the Archives RIEC, Tohoku University : Back number Annual Report of RIEC : Back Number RIEC NEWS Back Number Other Call For Proposals RIEC Administrative Office (Japanese Website) Educational Activities 日本語 English About RIEC Introduction Message from the Director Principles, Missions, Objectives Institute Vision Organization People, Land and Buildings, Budgets History Chronology International Activities COE of International Research Collaboration How to study at RIEC Organization Computing System Platforms Division Solid State Electronics Dielectric Nano-Devices Materials Functionality Design Spintronics Nano-Integration Devices and Systems Quantum Devices Innovative Spintronic Device Computing Information Theory New Paradigm VLSI System Information Communication Platforms Division Ultrahigh-Speed Optical Communication Group Applied Quantum Optics Group Advanced Wireless Information Technology Information Storage Systems Ultra-Broadband Signal Processing Quantum-Optical Information Technology Network Architecture Environmentally Conscious Secure Information System Human and Bio Information Systems Division Electromagnetic Bioinformation Engineering Advanced Acoustic Information Systems Visual Cognition and Systems Realｰworld computing Nano-Bio Hybrid Molecular Devices Interactive Content Design Soft Computing Integrated System Research Facilities Laboratory for Nanoelectronics and Spintronics Laboratory for Brainware Systems Research Center for 21st Century Information Technology（IT-21 Center） Common Research Facilities Flexible Information System Center Fundamental Technology Center Management Office for Safety and Health Promotion Office Ad-hoc research groups Co-creation Research Center Furukawa Electric x Tohoku Univ. Co-creation Research Center for Photonics Integration Staff Cooperative Research About RIEC Cooperative Research Projects Public Invitation RIEC Nation-wide Application System List of Research Projects Description of acknowledgment RIEC Annual Meeting FY2023 RIEC Annual Meeting FY2022 RIEC Annual Meeting International Exchange International Activities COE of International Research Collaboration Information What’s New Award News Press Release Event RIEC Annual Meeting Projects Type-T (Study Groups on Electrical Communication) Lecture Symposiums Nation-wide Cooperative Study Group Archives RIEC NEWS WEB Latest version of the Archives RIEC, Tohoku University : Back number Annual Report of RIEC : Back Number RIEC NEWS Back Number Other Call For Proposals RIEC Administrative Office (Japanese Website) Educational Activities 日本語 English Materials Functionality Design HOME > Research Activities > Computing System Platforms Division > Materials Functionality Design &＃62;&＃62; Computing System Platforms Division Materials Functionality Design Researcher [ Professor ]Masafumi Shirai [ Associate Professor ]Kazutaka Abe [ Assistant Professor ]Masato Tsujikawa [ Assistant Professor(CSIS) ]Tufan Roy Group Web Site https://www.shirai.riec.tohoku.ac.jp/ Research Activities Various kinds of materials are utilized for processing, communication, and storage of massive data in modern information devices. Our research objectives are as follows: (1) theoretical analyses of quantum phenomena in materials and nanostructures, (2) computational design of materials and nanostructures which possess new functionalities, (3) development of materials design scheme utilizing large-scale computational simulation techniques. Materials Functionality Design (Prof. Shirai) Research topics Design of new spintronics materials based on first-principles calculation and machine learning Theoretical analysis of transport properties in spintronics devices Development of innovative simulation scheme for material/device functionality design Our research interest is focused on “spintronics” to realize new functional devices. The main topic is theoretical analysis of spin-dependent transport properties in highly spin-polarized materials. Recently, we seek for new electrode materials of magnetic tunnel junction by combining first-principles calculations and machine learning. We also theoretically investigated thermoelectric properties originated from topological electronic structures. Materials Science under Extreme Conditions(Assoc. Prof. Abe) Research topics Matter at high densities. Metallization and superconductivity of hydrogen and hydrides. Development of first-principles structural search methods We investigate the properties of dense materials by using ab initio methods. Our current research focuses on metallic hydrides, which are experimentally found to show high-temperature superconductivity driven by electron-phonon coupling. We are also developing simulation techniques to look for stable structures from first principles. The structure search methods are quite useful for examining unknown substances and, therefore, likewise applicable to designing new materials at one atmosphere. Fig.1: The correlation between the Curie temperatures of quaternary Heusler alloys predicted by machine learning (horizontal axis) and those obtained by first-principles calculations (vertical axis) Fig.2: Schematics of crystal and magnetic structures of the CoCrMnSi/MgO junction that is predicted to possess high interfacial magnetic stiffness by first-principles calculations Related Videos 研究室のようすThe state of the research About RIEC Message from the Director Principles, Missions, Objectives Institute Vision Organization People, Land and Buildings, Budgets Chronology How to study at RIEC Cooperative Research About RIEC Cooperative Research Projects Public Invitation RIEC Nation-wide Cooperative Research Projects System Description of acknowledgment Information What’s New Archives Link Call For Proposals Link Access Contact Us Sitemap Organization Computing System Platforms Division Information Communication Platforms Division Human and Bio Information Systems Division Research Facilities Common Research Facilities Ad-hoc research groups International Exchange International Activities COE of International Research Collaboration RIEC public relations RIEC Newsweb RIEC Youtube Channel RIEC People 東北大学電気通信研究所Research Institute of Electrical Communication Tohoku University 〒980-8577 宮城県仙台市青葉区片平２丁目１−１2-1-1 Katahira, Aoba-ku, Sendai 980-8577, JAPAN © 2019 Research Institute of Electrical Communication Tohoku University All Rights Reserved.