Anomalous Hall effect mechanisms in the quasi-two-dimensional van der Waals ferromagnet Fe0.29TaS2

被引：13

作者：

Cai, Ranran ^{[1
,2
]}

Xing, Wenyu ^{[1
,2
]}

Zhou, Huibin ^{[1
,2
]}

Li, Boning ^{[1
,2
]}

Chen, Yangyang ^{[1
,2
]}

Yao, Yunyan ^{[1
,2
]}

Ma, Yang ^{[1
,2
]}

Xie, X. C. ^{[1
,2
,3
,4
]}

Jia, Shuang ^{[1
,2
,3
,4
]}

Han, Wei ^{[1
,2
]}

机构：

[1] Peking Univ, Int Ctr Quantum Mat, Sch Phys, Beijing 100871, Peoples R China

[2] Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China

[3] Univ Chinese Acad Sci, CAS Ctr Excellence Topol Quantum Computat, Beijing 100190, Peoples R China

[4] Beijing Acad Quantum Informat Sci, Beijing 100193, Peoples R China

来源：

PHYSICAL REVIEW B | 2019年 / 100卷 / 05期

基金：

北京市自然科学基金; 中国国家自然科学基金;

关键词：

MAGNETIC-PROPERTIES; ROOM-TEMPERATURE; DOMAIN-STRUCTURE; MAGNETORESISTANCE; CRYSTAL;

D O I：

10.1103/PhysRevB.100.054430

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The recent emergence of two-dimensional (2D) van der Waals ferromagnets has provided a new platform for exploring magnetism in the flatland and for designing 2D ferromagnet-based spintronics devices. Despite intensive studies, the anomalous Hall effect (AHE) mechanisms in 2D van der Waals ferromagnets have not been investigated yet. In this paper, we report the AHE mechanisms in quasi-2D van der Waals ferromagnet Fe0.29TaS2 via systematically measuring Fe0.29TaS2 devices with thickness from 14 nm to bulk single crystal. The AHE mechanisms are investigated via the scaling relationship between the anomalous Hall and channel conductivities. As the Fe0.29TaS2 thickness decreases, the major AHE mechanism changes from extrinsic scattering to intrinsic contribution. The crossover of the AHE mechanisms is found to be highly associated with the channel conductivities as the Fe0.29TaS2 thickness varies.

引用

页数：8

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