Significant suppression of galvanomagnetic signal under dynamical spin injection in CoFeB/Pt bilayer

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Abstract

An effective detection structure for a dynamical spin injection in a ferromagnetic/nonmagnetic metal bilayer has been developed. We demonstrate a clear detection of a highly symmetric signal, indicating a significant suppression of spurious signals due to the galvanomagnetic effects from the ferromagnetic layer. The angular dependence of the signal amplitude assures that the observed signal is caused by the inverse spin Hall effect due to the dynamical spin injection. We also find the importance of the eddy current that induces spin-rectified signals from a ferromagnetic layer.

Original languageEnglish
Article number152401
JournalApplied Physics Letters
Volume118
Issue number15
DOIs
Publication statusPublished - Apr 12 2021

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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