Field-induced magnetic phase transitions and the resultant giant anomalous Hall effect in the antiferromagnetic half-Heusler compound DyPtBi

被引：25

作者：

Zhang, H. ^{[1
]}

Zhu, Y. L. ^{[2
]}

Qiu, Y. ^{[3
]}

Tian, W. ^{[4
]}

Cao, H. B. ^{[4
]}

Mao, Z. Q. ^{[2
]}

Ke, X. ^{[1
]}

机构：

[1] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA

[2] Penn State Univ, Dept Phys, University Pk, PA 16802 USA

[3] NIST, NIST Ctr Neutron Res, Gaithersburg, MD 20899 USA

[4] Oak Ridge Natl Lab, Neutron Scattering Div, POB 2009, Oak Ridge, TN 37831 USA

来源：

PHYSICAL REVIEW B | 2020年 / 102卷 / 09期

基金：

美国国家科学基金会;

关键词：

Antiferromagnetic materials - Bismuth alloys - Dysprosium alloys - Platinum alloys - Antiferromagnetism - Spin Hall effect - Ternary alloys;

D O I：

10.1103/PhysRevB.102.094424

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report field-induced magnetic phase transitions and transport properties of antiferromagnetic DyPtBi. We show that DyPtBi hosts a delicate balance between two different magnetic ground states, which can be controlled by a moderate magnetic field. Furthermore, it exhibits giant anomalous Hall effect (sA = 1540 Omega(-1) cm(-1), theta(AHE) = 24%) in a field-induced type-I spin structure, presumably attributed to the enhanced Berry curvature associated with avoided band crossings near the Fermi energy and/or nonzero spin chirality. The latter mechanism points DyPtBi towards a rare potential realization of anomalous Hall effect in an antiferromagnet with face-centered-cubic lattice that was proposed in [Physical Review Letters 87, 116801 (2001)].

引用

页数：6

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