Magnetic phase dependence of the anomalous Hall effect in Mn3Sn single crystals

被引：82

作者：

Sung, N. H. ^{[1
]}

Ronning, F. ^{[1
]}

Thompson, J. D. ^{[1
]}

Bauer, E. D. ^{[1
]}

机构：

[1] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

APPLIED PHYSICS LETTERS | 2018年 / 112卷 / 13期

关键词：

WEAK FERROMAGNETISM; SPIN STRUCTURE; BERRY PHASE;

D O I：

10.1063/1.5021133

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Thermodynamic and transport properties are reported on single crystals of the hexagonal antiferromagnet Mn3Sn grown by the Sn flux technique. Magnetization measurements reveal two magnetic phase transitions at T-1 = 275K and T-2 = 200 K, below the antiferromagnetic phase transition at T-N approximate to 420 K. The Hall conductivity in zero magnetic field is suppressed dramatically from 4.7 Omega(-1) cm(-1) to near zero below T-1, coincident with the vanishing of the weak ferromagnetic moment. This illustrates that the large anomalous Hall effect arising from the Berry curvature can be switched on and off by a subtle change in the symmetry of the magnetic structure near room temperature. Published by AIP Publishing.

引用

页数：5

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