Computational Nano-materials Design for Colossal Thermoelectric-cooling Power by Adiabatic Spin-Entropy Expansion in Nano-superstructures
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概要
- 論文の詳細を見る
In addition to the conventional Peltier effect, we propose a new class of thermoelectric-cooling mechanism based on the adiabatic spin-entropy expansion in a quasi-one-dimensional nano-superstructure by injecting the spin current from the ferromagnetic metal to paramagnetic one. The spin-entropy expansion mechanism dominates and enhances the thermoelectric-cooling power dramatically in current perpendicular to plane-giant magneto-resistance (CPP-GMR) Co/Au nano-interface. Based upon the spin-entropy expansion mechanism, we design the new thermoelectric-cooling nano-superstructures using the newly designed half-Heusler ferromagnets NiMnSi ($T_{\text{C}}=1050$ K) and self-organized quasi-one-dimensional Konbu-phase (Zn,Cr)Te with very high blocking temperature (${>}1000$ K) by spinodal nano-decomposition.
- Japan Society of Applied Physicsの論文
- 2007-09-25
著者
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Fukushima Tetsuya
The Institute Of Scientific And Industrial Research (isir) Osaka University
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SATO Kazunori
The Institute of Scientific and Industrial Research (ISIR), Osaka University
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Dinh Van
The Institute Of Scientific And Industrial Research Osaka University
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Katayama-yoshida Hiroshi
The Institute Of Scientific And Industrial Research (isir) Osaka University
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Dinh Van
The Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
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