Large spin anomalous Hall effect in L10-FePt: Symmetry and magnetization switching

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19 Citations (Scopus)

Abstract

The spin anomalous Hall effect (SAHE), generating spin angular momentum flow (spin current, Js), in an L10-FePt ferromagnet was quantitatively evaluated by exploiting giant magnetoresistance devices composed of L10-FePt|Cu|Ni81Fe19. From the ferromagnetic resonance linewidth modulated by the charge current (Jc) injection, the spin anomalous Hall angle (αSAHE) was obtained to be 0.25 ± 0.03. The evaluation of αSAHE at different configurations of Jc and magnetization made it possible to discuss the symmetry of SAHE, giving the unambiguous evidence that SAHE is the source of Js. Thanks to the large αSAHE, the SAHE-induced magnetization switching was achieved.

Original languageEnglish
Article number144427
JournalPhysical Review B
Volume100
Issue number14
DOIs
Publication statusPublished - 2019 Oct 18

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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