Effective suppression of thermoelectric voltage in nonlocal spin-valve measurement

Taisei Ariki, Tatsuya Nomura, Kohei Ohnishi, Takashi Kimura

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1 Citation (Scopus)

Abstract

We demonstrate that the background signal in the nonlocal spin-valve measurement can be sufficiently suppressed by optimizing the electrode design of the lateral spin valve. A relatively long length scale of heat propagation produces spin-independent thermoelectric signals under the combination of the Peltier and Seebeck effects. These unfavorable signals can be reduced by mixing the Peltier effects in two transparent ferromagnetic/nonmagnetic junctions. Proper understanding of the contribution from the heat current in no spin-current area is a key for effective reduction of the spin-independent background signal.

Original languageEnglish
Article number063004
JournalApplied Physics Express
Volume10
Issue number6
DOIs
Publication statusPublished - Jun 2017

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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