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J-GLOBAL ID：200901097241819649   Update date: Apr. 04, 2025

Yamaji Toshiki

ヤマジ トシキ | Yamaji Toshiki
Affiliation and department：
National Institute of Advanced Industrial Science and Technology

About National Institute of Advanced Industrial Science and Technology


Homepage URL  (1)： http://www.aist.go.jp/RESEARCHERDB/cgi-bin/worker_detail.cgi?call=namae&rw_id=T99676612
Research field  (2)： Mathematical physics and basic theory ,  Magnetism, superconductivity, and strongly correlated systems
Research keywords  (4)： condensed matter theory ,  スピントロニクス ,  核磁気共鳴 ,  電子スピン共鳴
Research theme for competitive and other funds  (7)：
  • 2024 - 2027 Theoretical study on next-generation ultra-high speed true random number generator using spintronics technique and control of magnetization switching
  • 2020 - 2023 Theoretical study of laser-excited magnetization reversal dynamics for developing ultra-high-density magnetic recording media
  • 2018 - 2022 Development of high perpendicular anisotropy thin film and its magnetization control
  • 2020 - 2021 Theoretical study of laser-induced magnetization reversal dynamics for developing ultra-high density magnetic recording media
  • 2017 - 2020 Theoretical Study of Magnetization Switching Dynamics Using Spin Wave Resonance
Show all
Papers (27)：
  • Toshiki Yamaji, Hiroshi Imamura. Macrospin study on magnetization reversal in synthetic antiferromagnetically coupled composite of perpendicularly magnetized nanomagnets. Applied Physics Letters. 2024. 125. 11. 112403-1-112403-6
  • Hiroshi Imamura, Hiroko Arai, Rie Matsumoto, Toshiki Yamaji. 1/f noise of a nanopillar tunnel-magnetoresistance sensor originating from a wide distribution of bath correlation times. Physical Review Applied. 2024. 22. 1. 014032-1-014032-9
  • Toshiki Yamaji, Hiroshi Imamura. Synthetic exchange coupled composite for widening an in-plane ballistic switching region. Applied Physics Letters. 2024. 124. 12. 122410-1-122410-5
  • Toshiki Yamaji, Hiroshi Imamura. Material Parameters for Faster Ballistic Switching of an In-Plane Magnetized Nanomagnet. Journal of the Physical Society of Japan. 2023. 92. 6. 064703-1-064703-5
  • Hiroshi Imamura, Hiroko Arai, Rie Matsumoto, Toshiki Yamaji, Hiroshi Tsukahara. Precession dynamics of a small magnet with non-Markovian damping: Theoretical proposal for an experiment to determine the correlation time. Journal of Magnetism and Magnetic Materials. 2022. 553. 1. 169209-169209
ｍore...
MISC (3)：
  • Toshiki YAMAJI. Story of my experience of both ESR and NMR. Bulletin of the Society of Electron Spin Science and Technology (SEST). 2019. 32. 42-45
  • Toshiki YAMAJI, Kiyonori TAKEGOSHI, Tadashi SHIMIZU. Analysis of 11B NMR Powder Lineshape of MgB2 in the Normal Phase. 2008. 123-124
  • Jun YAMAUCHI, Toshiki YAMAJI. Temperature dependence of spin-lattice relaxation time and spin-spin relaxation time of organic radical. Low Temperature and Materials Sciences (Kyoto University). 2006. 8. 50-50
Lectures and oral presentations  (30)：
  • Theoretical analysis of thermal effect on ballistic magnetization reversal in a nano-magnet
    (The 2024 IEICE Society Conference 2024)
  • Theoretical analysis on 1/f noise of a tiny TMR sensor
    (The 5th International Symposium on Advanced Magnetic Materials and Applications (ISAMMA 2024) 2024)
  • Theoretical study on 1/f noise of TMR sensors
    (The 71th JSAP Spring Meeting 2024)
  • Theoretical analysis and LLG simulation on magnetization reversal in synthetic antiferromagnetically coupled composite of perpendicularly magnetized nanomagnets based on macrospin model
    (The 2024 IEICE General Conference 2024)
  • Theoretical analysis of ballistic magnetization switching region in exchange coupled nano magnets
    (2023 Annual (78th) Meeting of JPS 2023)
ｍore...
Education (3)：
  • - 2006 Kyoto University
  • - 2003 京都大学 人間・環境学研究科 人間・環境学専攻
  • - 2001 Kyoto University Faculty of Engineering School of Global Engineering
Professional career (1)：
  • Ph.D(Doctor of Science) (Kyoto University)
Work history (1)：
  • 2006/04 - 2008/03 Kyoto University Graduate School of Science, Division of Chemistry
Committee career (2)：
  • 2024/06 - 現在 The Institute of Electronics, Information and Communication Engineers (IEICE) Secretary of IEICE Technical Committee on Magnetic Recording & Information Storage (MRIS)
  • 2022/06 - 2024/06 The Institute of Electronics, Information and Communication Engineers (IEICE) Assistant Secretary of IEICE Technical Committee on Magnetic Recording & Information Storage (MRIS)
Association Membership(s) (4)：
日本磁気学会 ,  応用物理学会 ,  電子スピンサイエンス学会 ,  日本物理学会
※ Researcher’s information displayed in J-GLOBAL is based on the information registered in researchmap. For details, see here.

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