2012 Fiscal Year Final Research Report
Universal approach to estimating spin polarization
| Project/Area Number |
23656381
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Physical properties of metals
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
TANIYAMA Tomoyasu 東京工業大学, 応用セラミックス研究所, 准教授 (10302960)
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| Project Period (FY) |
2011 – 2012
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| Keywords | 電子 / 磁気物性 / スピントロニクス |
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| Research Abstract |
The purpose of this study is to estimate the spin polarization of conduction electrons inferromagnetic metals by using pump probe technique. Firstly, we have grown various ferromagnetic metal thin films with different spin polarization. Spin relaxation of electrons in a semiconductor quantum well, which was excited by irradiating with circularly polarized light, was then measured using pump-probe magneto-optical Kerr effect technique. We have also made an attempt at measuring the spin relaxation of ferromagnetic thin films.
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