Effective modulation of spin accumulation using a ferromagnetic/nonmagnetic bilayer spin channel

Taisei Ariki, Tatsuya Nomura, Kohei Ohnishi, Takashi Kimura

Research output: Contribution to journalArticlepeer-review

Abstract

A lateral spin valve consisting of highly spin-polarized CoFeAl electrodes with a CoFeAl/Cu bilayer spin channel has been developed. Despite a large spin absorption into the CoFeAl capping channel layer, an efficient spin injection and detection using the CoFeAl electrodes enable us to observe a clear spin valve signal. We demonstrate that the nonlocal spin accumulation signal is significantly modulated depending on the relative angle of the magnetizations between the spin injector and absorber. The observed modulation phenomena is explained by the longitudinal and transverse spin absorption effects into the CoFeAl channel layer with the spin resistance model.

Original languageEnglish
Article number095302
JournalJournal of Physics D: Applied Physics
Volume55
Issue number9
DOIs
Publication statusPublished - Mar 3 2022

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

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