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.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics