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Laser-induced deterministic magnetization switching for next-generation magnetic recording

Research Project

Project/Area Number 21K14521
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 29010:Applied physical properties-related
Research InstitutionNational Institute of Advanced Industrial Science and Technology

Principal Investigator

王 建  国立研究開発法人産業技術総合研究所, 材料・化学領域, 研究員 (80792069)

Project Period (FY) 2021-04-01 – 2023-03-31
Project Status Granted (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywordsエネルギーアシスト磁化反転 / 光誘起磁化反転 / 熱流スピン流変換 / 超高密度磁気記録 / FePt媒体
Outline of Research at the Start

Nowadays, the question of how, and how fast, magnetization can be reversed is attracting great practical interest in hard disk drive (HDD) community. The applicant here unprecedently utilizes the interconversion between heat (phononic), light (photonic), and spin (spintronic) for ultrafast manipulation of magnetization reversal. Success of this proposal will bring revolutionary impact on the next-generation HDD with much higher recording areal density and energy efficiency.

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Published: 2021-04-28   Modified: 2021-08-30  

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