大幅提高β-W基合金的本征自旋霍尔电导率

IF 1 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2024-06-06 DOI:10.1002/tee.24142

Nguyen Huynh Tuan Anh, Ho Van Binh, Hua Thi Hoang Yen, Do Duc Cuong

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引用次数: 0

摘要

在这项研究中，通过结合 ab initio 方法和紧密结合方法，对 β-W 及其与 V 的合金的本征自旋霍尔电导率进行了理论研究。研究充分考虑了 V 在 β-W 结构中的两种可能构型，并利用它们的总能量差，通过麦克斯韦-玻尔兹曼分布估算合金的热力学平均 SHC。结果发现，由于两种构型之间的总能量差很小，两种构型都对合金的热力学平均 SHC 有很大贡献，因此与原始的 β-W 相比，合金的平均 SHC 增强了 12.3%。

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Large Enhancement of Intrinsic Spin Hall Conductivity of β-W Based Alloy

In this work, intrinsic spin Hall conductivity of β-W and its alloy with V has been theoretically studied by the combination of ab initio method with the tight binding method. Both two possible configurations of V in β-W structure are fully considered and their total energy difference used to estimate the thermodynamic average SHC of alloy by using Maxwell-Boltzmann distribution. It is found that due to the small total energy difference between two configurations, there is a significant contribution to the thermodynamic average SHC of the alloy from both configurations, which results in the average SHC of alloy being enhanced up to 12.3% compared with the pristine β-W. © 2024 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.

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来源期刊

IEEJ Transactions on Electrical and Electronic Engineering 工程技术-工程：电子与电气

CiteScore

2.70

自引率

10.00%

发文量

199

审稿时长

4.3 months

期刊介绍： IEEJ Transactions on Electrical and Electronic Engineering (hereinafter called TEEE ) publishes 6 times per year as an official journal of the Institute of Electrical Engineers of Japan (hereinafter "IEEJ"). This peer-reviewed journal contains original research papers and review articles on the most important and latest technological advances in core areas of Electrical and Electronic Engineering and in related disciplines. The journal also publishes short communications reporting on the results of the latest research activities TEEE ) aims to provide a new forum for IEEJ members in Japan as well as fellow researchers in Electrical and Electronic Engineering from around the world to exchange ideas and research findings.