Thermal engineering of non-local resistance in lateral spin valves

S. Kasai, S. Hirayama, Y. K. Takahashi, S. Mitani, K. Hono, H. Adachi, J. Ieda, S. Maekawa

研究成果: Article査読

8 被引用数 (Scopus)

抄録

We study the non-local spin transport in Permalloy/Cu lateral spin valves (LSVs) fabricated on thermally oxidized Si and MgO substrates. While these LSVs show the same magnitude of spin signals, significant substrate dependence of the baseline resistance was observed. The baseline resistance shows much weaker dependence on the inter-electrode distance than that of the spin transport observed in the Cu wires. A simple analysis of voltage-current characteristics in the baseline resistance indicates the observed result can be explained by a combination of the Peltier and Seebeck effects at the injector and detector junctions, suggesting the usage of high thermal conductivity substrate (or under-layer) is effective to reduce the baseline resistance.

本文言語English
論文番号162410
ジャーナルApplied Physics Letters
104
16
DOI
出版ステータスPublished - 2014 4 21
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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