Study of magnetization switching process of perpendicular magnetization film with high squareness ratio
Project/Area Number |
15K04658
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Applied materials
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Research Institution | National Institutes for Quantum and Radiological Science and Technology (2016-2017) Japan Atomic Energy Agency (2015) |
Principal Investigator |
AGUI Akane 国立研究開発法人量子科学技術研究開発機構, 関西光科学研究所 放射光科学研究センター, 上席研究員(定常) (20360406)
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Project Period (FY) |
2015-04-01 – 2018-03-31
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Project Status |
Completed (Fiscal Year 2017)
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Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
|
Keywords | コンプトン散乱 / 垂直磁化膜 / 磁化過程 / 磁気円二色性 / 磁気記録 / 磁気円二色性吸収測定 |
Outline of Final Research Achievements |
A rare earth-transition metal amorphous alloy film is a system known as a material of a magnetic recording material. In this study, the spin and orbital specified magnetization curves, and as well as, element specified magnetization curves of Tb x Co 100 - x films were measured by combing total magnetization curve measurement and magnetic Compton scattering measurement. The spin magnetic moment, the orbital magnetic moment, the Tb magnetic moment and the Co magnetic moment direction are reversed with the magnetic compensation composition around x=17. Since the 4f orbital of rare earth Tb is dominant and the system with large spin orbital interaction is used in the system used in this study, the ratio of spin to orbit, the ratio of Tb and Co is nearly constant. It is consistent with the theory of rectangular exchange interaction.
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Report
(4 results)
Research Products
(21 results)
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[Journal Article] Glassy Distribution of Bi3+/Bi5+ in Bi1-xPbxNiO3 and Negative Thermal Expansion Induced by Intermetallic Charge Transfer2016
Author(s)
Kiho Nakano, Kengo Oka, Tetsu Watanuki, Masaichiro Mizumaki, Akihiko Machida, Akane Agui, Hyunjeong Kim, Jun Komiyama, Takashi Mizokawa, Takumi Nishikubo, Yuichiro Hattori, Shigenori Ueda, Yuki Sakai, and Masaki Azuma
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Journal Title
Chemistry of Materials
Volume: 28
Issue: 17
Pages: 6062-6067
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Journal Article] Melting of Pb Charge Glass and Simultaneous PbCr Charge Transfer in Pb-CrO3 as the Origin of Volume Collapse2015
Author(s)
Runze Yu, Hajime Hojo, Tetsu Watanuki, Masaichiro Mizumaki,Takashi Mizokawa, Kengo Oka, Hyunjeong Kim, Akihiko Machida, Kouji Sakaki, Yumiko Nakamura, Akane Agui, D. Mori, Yoshiyuki Inaguma, Martin Schlipf, Konstantin Rushchanskii, Marjana Lezzaic M. Matsuda, Jie Ma, Stuart A Calder, M. Isobe, Y. Ikuhara, and M. Azuma
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Journal Title
Journal of the Amarican Chemical Society
Volume: 137
Pages: 12719-12728
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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