Direct observation of the temperature dependence of the Dzyaloshinskii-Moriya interaction

被引:6
作者
Zhang, Yabing [1 ]
Kong, Xiangjie [1 ]
Xu, Guofu [1 ]
Jin, Ying [1 ]
Jiang, Changjun [1 ]
Chai, Guozhi [1 ]
机构
[1] Lanzhou Univ, Key Lab Magnetism & Magnet Mat, Minist Educ, Lanzhou 730000, Peoples R China
基金
中国国家自然科学基金;
关键词
Dzyaloshinskii-Moriya interaction; Brillouin light scattering spectroscopy; temperature dependence; ANISOTROPY; SKYRMIONS; EXCHANGE; DYNAMICS; DRIVEN;
D O I
10.1088/1361-6463/ac50cd
中图分类号
O59 [应用物理学];
学科分类号
摘要
In this work, we investigate the temperature dependence of the Dzyaloshinskii-Moriya interaction (DMI) in Co/Pt thin film by observing the asymmetric spin-wave dispersion using Brillouin light scattering. The DMI constant D reduce monotonously with the temperature increasing from room temperature to 393 K. By extracting the saturation magnetization M (s) and the uniaxial anisotropy K (u), we find that D(T) proportional to K (u) (T)(2.08 +/- 0.13) and D(T) proportional to M (s) (T)(5.25 +/- 0.33). These observations indicate that temperature is a possible way to control the DMI. On the other hand, the temperature dependence of DMI in thin films may have significant influence for potential applications.
引用
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页数:6
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