TY - JOUR
T1 - Large spin anomalous Hall effect in L10-FePt
T2 - Symmetry and magnetization switching
AU - Seki, Takeshi
AU - Iihama, Satoshi
AU - Taniguchi, Tomohiro
AU - Takanashi, Koki
N1 - Funding Information:
The authors thank K. Uchida, T. Kikkawa, Y. Miura, K. Masuda, K. Nawa, and S. Takahashi for their valuable comments. I. Narita provided technical support during the structural characterization. This work was supported by the Grant-in-Aid for Scientific Research B (Grant No. JP16H04487), Grant-in-Aid for Challenging Research (Exploratory, Grant No. JP18K19012), Grant-in-Aid for Scientific Research (S) (Grant No. JP18H05246) and Innovative Area Nano Spin Conversion Science (Grant No. JP26103005) as well as the Research Grant from the TEPCO Memorial Foundation. The device fabrication was partly carried out at the Cooperative Research and Development Center for Advanced Materials, IMR, Tohoku University.
Funding Information:
The authors thank K. Uchida, T. Kikkawa, Y. Miura, K. Masuda, K. Nawa, and S. Takahashi for their valuable comments. I. Narita provided technical support during the structural characterization. This work was supported by the Grant-in-Aid for Scientific Research B (Grant No. JP16H04487), Grant-in-Aid for Challenging Research (Exploratory, Grant No. JP18K19012), Grant-in-Aid for Scientific Research (S) (Grant No. JP18H05246) and Innovative Area “Nano Spin Conversion Science” (Grant No. JP26103005) as well as the Research Grant from the TEPCO Memorial Foundation. The device fabrication was partly carried out at the Cooperative Research and Development Center for Advanced Materials, IMR, Tohoku University.
Publisher Copyright:
© 2019 American Physical Society.
PY - 2019/10/18
Y1 - 2019/10/18
N2 - 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.
AB - 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.
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U2 - 10.1103/PhysRevB.100.144427
DO - 10.1103/PhysRevB.100.144427
M3 - Article
AN - SCOPUS:85074426277
SN - 2469-9950
VL - 100
JO - Physical Review B
JF - Physical Review B
IS - 14
M1 - 144427
ER -