2013 Fiscal Year Final Research Report
Control of Spin Transport in Organic Semiconductors
| Project/Area Number |
23350091
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Functional materials/Devices
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| Research Institution | Osaka University |
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Principal Investigator |
TADA Hirokazu 大阪大学, 基礎工学研究科, 教授 (40216974)
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| Co-Investigator(Kenkyū-buntansha) |
KAWASUGI Yoshitaka 大阪大学, 大学院・基礎工学研究科, 助教 (40590964)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | 有機半導体 / スピントロニクス |
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| Research Abstract |
We have studied magnetoresitance in the non-local spin valves based on single crystals of organic conductors. We observed non-local magnetoresistance at the antiparallel configuration of the ferromagnetic electrodes with spacings of a few hundreds nm. The spin diffusion length and spin relaxation time were estimated to be 1100 nm and 3 ns, respectively.
We prepared layered spin-valve devices consisting of Co, organic films and Co2MnSi, of which the magnetoresitance was approximately 7 % at room temperature.
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