Unusual magnetic and transport properties in HoMn6Sn6 kagome magnet
Date
2022-06-07
Authors
Kabir, Firoza
Filippone, Randall
Dhakal, Gyanendra
Lee, Y.
Poudel, Narayan
Casey, Jacob
Sakhya, Anup Pradhan
Regmi, Sabin
Smith, Robert
Manfrinetti, Pietro
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Iowa State University Digital Repository, Ames IA (United States)
Abstract
With intricate lattice structures, kagome materials are an excellent platform to study various fascinating topological quantum states. In particular, kagome materials, revealing large responses to external stimuli such as pressure or magnetic field, are subject to special investigation. Here we study the kagome-net HoMn6Sn6 magnet that undergoes paramagnetic to ferrimagnetic transition (below 376 K) and reveals spin-reorientation transition below 200 K. In this compound, we observe the topological Hall effect and substantial contribution of anomalous Hall effect above 100 K. We unveil the pressure effects on magnetic ordering at a low magnetic field from the pressure tunable magnetization measurement. By utilizing high-resolution angle-resolved photoemission spectroscopy, Dirac-like dispersion at the high-symmetry point K is revealed in the vicinity of the Fermi level, which is well supported by the first-principles calculations. Our investigation will pave the way to understanding the magnetotransport and electronic properties of various rare-earth-based kagome magnets.
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IS-J 10834
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article
Comments
This article is published as Kabir, Firoza, Randall Filippone, Gyanendra Dhakal, Y. Lee, Narayan Poudel, Jacob Casey, Anup Pradhan Sakhya et al. "Unusual magnetic and transport properties in HoMn 6 Sn 6 kagome magnet." Physical Review Materials 6, no. 6 (2022): 064404.
DOI: 10.1103/PhysRevMaterials.6.064404.
Copyright 2022 American Physical Society.
Posted with permission.
DOE Contract Number(s): AC02-07CH11358; AC07-05ID14517; FA9550-17-1-0415; FA9550-20-1-0322.