Anomalous Spin-Orbit Field via the Rashba-Edelstein Effect at the W/Pt Interface

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5 Citations (Scopus)


We study the spin-orbit (SO) field in Ni80Fe20(Permalloy; Py)/W/Pt trilayer by means of spin-torque ferromagnetic resonance, and demonstrate that the W/Pt interface generates an extra SO field that acts on the Py layer. This unprecedented field originates from the following three processes: (1) spin accumulation at the W/Pt interface via the Rashba-Edelstein effect, (2) diffusive spin transport in the W layer, and (3) spin absorption into the Py layer through accumulation at the Py/W interface. Our results mean that we can create an extra SO field away from the ferromagnet/metal interface and control its strength by a combination of two different metals.

Original languageEnglish
Article number024009
JournalPhysical Review Applied
Issue number2
Publication statusPublished - 2020 Feb

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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