Anomalous Hall effect and magnetic transition in the kagome material YbMn6Sn6

Lei Jiang; Feng-Ren Fan; Dong Chen; Qingge Mu; Yiyan Wang; Xiaoyu Yue; Na Li; Yan Sun; Qiuju Li; Dandan Wu; Ying Zhou; Xuefeng Sun; Hui Liang

doi:10.1088/1361-648X/ad42ef

Anomalous Hall effect and magnetic transition in the kagome material YbMn₆Sn₆

J Phys Condens Matter. 2024 May 8;36(31). doi: 10.1088/1361-648X/ad42ef.

Authors

Lei Jiang¹, Feng-Ren Fan^{2

3}, Dong Chen⁴, Qingge Mu¹, Yiyan Wang¹, Xiaoyu Yue⁵, Na Li¹, Yan Sun¹, Qiuju Li⁶, Dandan Wu¹, Ying Zhou¹, Xuefeng Sun¹, Hui Liang¹

Affiliations

¹ Institute of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601, People's Republic of China.
² Department of Physics, University of Hong Kong, Hong Kong Special Administrative Region of China, People's Republic of China.
³ HKU-UCAS Joint Institute of Theoretical and Computational Physics at Hong Kong, Hong Kong Special Administrative Region of China, People's Republic of China.
⁴ College of Physics, Qingdao University, Qingdao 266071, People's Republic of China.
⁵ School of Optical and Electronic Information, Suzhou City University, Suzhou 215104, People's Republic of China.
⁶ School of Physics & Materials Science, Anhui University, Hefei, Anhui 230601, People's Republic of China.

PMID: 38657636
DOI: 10.1088/1361-648X/ad42ef

Abstract

We investigate the magnetic and transport properties of a kagome magnet YbMn₆Sn₆. We have grown YbMn₆Sn₆single crystals having a HfFe₆Ge₆type structure with ordered Yb and Sn atoms, which is different from the distorted structure previously reported. The single crystal undergoes a ferromagnetic phase transition around 300 K and a ferrimagnetic transition at approximately 30 K, and the magnetic transition at low temperature may be correlated to the ordered Yb sublattice. Negative magnetoresistance has been observed at high temperatures, while the positive magnetoresistance appears at 5 K when the current is oriented out of kagome plane. We observe a large anisotropic anomalous Hall effect with the intrinsic Hall contribution of 141 Ω^-1cm^-1forσzxintand 32 Ω^-1cm^-1forσxyint, respectively. These values are similar to those in YMn₆Sn₆with the same anisotropy. The magnetic transition and anomalous Hall behavior in YbMn₆Sn₆highlights the influence of the ordered Yb atoms and rare earth elements on its magnetic and transport properties.

Keywords: anomalous Hall effect; kagome; magnetic transition; single crystal; transport properties.