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

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2022年 / 55卷 / 19期

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

页数：6

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