Py/W和Py/Pt双层膜中自旋泵浦的温度依赖性

IF 1.1 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING Physics of Metals and Metallography Pub Date : 2024-07-17 DOI:10.1134/s0031918x24600593

A. S. Pakhomov, P. N. Skirdkov, V. V. Yurlov, A. I. Chernov, K. A. Zvezdin

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引用次数: 0

摘要

摘要利用铁磁共振方法对 Py/Pt 和 Py/W 异质结构的固体薄膜进行了研究。在 5-290 K 的温度范围内，获得了吉尔伯特阻尼参数和反自旋霍尔效应（ISHE）电压的温度依赖性。发现在 50 K 附近，吉尔伯特阻尼参数异常增加，反自旋霍尔效应的电压也发生了变化。结论是吉尔伯特阻尼参数的增加具有自旋轨道性质。

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The Temperature Dependence of Spin Pumping in Py/W and Py/Pt Bilayers

Abstract

The solid thin films of Py/Pt and Py/W heterostructures have been studied using the ferromagnetic resonance method. The temperature dependences of the Gilbert damping parameter and voltage of the inverse spin Hall effect (ISHE) have been obtained in the 5–290 K temperature range. An abnormal increase in the Gilbert damping parameter in the vicinity of 50 K and a change in the voltage of ISHE has been found. It has been concluded that an increase in the Gilbert damping parameter is of spin-orbital nature.

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来源期刊

Physics of Metals and Metallography 工程技术-冶金工程

CiteScore

2.00

自引率

25.00%

发文量

108

审稿时长

3 months

期刊介绍： The Physics of Metals and Metallography (Fizika metallov i metallovedenie) was founded in 1955 by the USSR Academy of Sciences. Its scientific profile involves the theory of metals and metal alloys, their electrical and magnetic properties, as well as their structure, phase transformations, and principal mechanical properties. The journal also publishes scientific reviews and papers written by experts involved in fundamental, application, and technological studies. The annual volume of publications amounts to some 250 papers submitted from 100 leading national scientific institutions.