Proposal for Unambiguous Electrical Detection of Spin-Charge Conversion in Lateral Spin Valves

Stuart A. Cavill, Chunli Huang, Manuel Offidani, Yu Hsuan Lin, Miguel A. Cazalilla, Aires Ferreira

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

Efficient detection of spin-charge conversion is crucial for advancing our understanding of emergent phenomena in spin-orbit-coupled nanostructures. Here, we provide a proof of principle of an electrical detection scheme of spin-charge conversion that enables full disentanglement of competing spin-orbit coupling (SOC) transport phenomena in diffusive lateral channels, i.e., the inverse spin Hall effect and the spin galvanic effect. A suitable geometry in an applied oblique magnetic field is shown to provide direct access to SOC transport coefficients through a symmetry analysis of the output nonlocal resistance. The scheme is robust against tilting of the spin-injector magnetization, disorder, and spurious non-spin-related contributions to the nonlocal signal and can be used to probe spin-charge conversion effects in both spin-valve and hybrid optospintronic devices.

Original languageEnglish
Article number236803
JournalPhysical Review Letters
Volume124
Issue number23
DOIs
StatePublished - Jun 12 2020

Bibliographical note

Publisher Copyright:
© 2020 American Physical Society.

ASJC Scopus subject areas

  • General Physics and Astronomy

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