Large anomalous Nernst effect and topological Nernst effect in the noncollinear antiferromagnet NdMn2Ge2

被引：5

作者：

Xu, Chunqiang ^{[1
,2
]}

Tian, Wei ^{[3
]}

Zhang, Pengpeng ^{[1
]}

Ke, Xianglin ^{[1
]}

机构：

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

[2] Ningbo Univ, Sch Phys Sci & Technol, Ningbo 315211, Peoples R China

[3] Oak Ridge Natl Lab, Neutron Scattering Div, Oak Ridge, TN 37831 USA

来源：

PHYSICAL REVIEW B | 2023年 / 108卷 / 06期

基金：

美国国家科学基金会;

关键词：

BERRY PHASE;

D O I：

10.1103/PhysRevB.108.064430

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

ThCr2Si2-type NdMn2Ge2 was recently proposed to be a magnetic skyrmion candidate exhibiting the topological Hall effect. In this work, we report magnetic, electronic, and thermoelectric measurements for NdMn2Ge2 single crystals. We show that, in the canted antiferromagnetic phase and the conical magnetic phase with a large out-of-plane ferromagnetic component, this system exhibits both an anomalous Nernst effect and a topological Nernst effect. We argue that NdMn2Ge2 is a unique magnetic material, with its topological characteristics associated with the Berry phases in both real space and momentum space.

引用

页数：5

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