2012 Fiscal Year Final Research Report
Development of efficient magnetic refrigeration technique using pure spin current
| Project/Area Number |
22246003
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Applied materials science/Crystal engineering
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| Research Institution | Kyushu University |
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Principal Investigator |
KIMURA Takashi 九州大学, 稲盛フロンティア研究センター, 教授 (80360535)
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| Co-Investigator(Kenkyū-buntansha) |
TOGAWA Yoshihiko 大阪府立大学, 21世紀科学研究機構, 准教授 (00415241)
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| Project Period (FY) |
2010 – 2012
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| Keywords | スピン注入 / 磁気冷凍 / スピントロニクス / 磁気熱量効果 / ナノエレクトロニクス |
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| Research Abstract |
By using efficient manipulation techniques of the pure spin current developed by the project leader, we develop a novel spin cooling device with manipulating the spin entropy of the magnetocaloric materials. The major activities are as follows.
1. Fabrication of high quality Gd nano wire
2. Detection of M-H curve of submicron Gd wire
3. Evaluation of spin absorption efficiency of Gd
4. Efficient spin absorption using transverse spin current
5. Reduction of thermoelectric voltage due to pure spin current injection.
The final result implies the realization of the spin cooling using pure spin current.
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