Magnetic damping enhancement in L12-ordered Mn3Ir/Fe20Ni80bilayers

被引：3
|
作者：
Kobayashi, Yuta [1 ]
Ikebuchi, Tetsuya [1 ]
Iwaki, Hiroyuki [1 ]
Shiota, Yoichi [1 ]
Ono, Teruo [1 ,2 ]
Moriyama, Takahiro [1 ]
机构：
[1] Kyoto Univ, Inst Chem Res, Uji, Kyoto 6110011, Japan
[2] Osaka Univ, Grad Sch Engn Sci, Ctr Spintron Res Network, Toyonaka, Osaka 5608531, Japan
来源：
APPLIED PHYSICS EXPRESS | 2020年 / 13卷 / 07期
关键词：
chiral antiferromagnet; ferromagnetic resonance; spin dissipation; NONCOLLINEAR ANTIFERROMAGNET;
D O I：
10.35848/1882-0786/ab9876
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Electron and spin transport in chiral antiferromagnets are of great interest in both fundamental and application point of views. In this letter, we explore and compare spin transport properties of a chiral antiferromagnetic L1(2)-ordered Mn3Ir and a disordered Mn3Ir by the spin pumping experiments. Larger Gilbert damping enhancement of the Fe(20)Ni(80)was found in L1(2)-ordered Mn3Ir/Fe(20)Ni(80)and L1(2)-ordered Mn3Ir/Ti/Fe(20)Ni(80)multilayers comparing to those with disordered ones. Our results suggest that the chiral spin structure causes larger spin dissipation than disordered spin structure.
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页数：3
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