Anisotropically large anomalous and topological Hall effect in a kagome magnet
Journal Article
·
· Physical Review. B
- Idaho National Lab. (INL), Idaho Falls, ID (United States); Univ. of Central Florida, Orlando, FL (United States)
- Uppsala Univ. (Sweden)
- State Univ. of New York (SUNY), Buffalo, NY (United States)
- Univ. of Central Florida, Orlando, FL (United States)
- Idaho National Lab. (INL), Idaho Falls, ID (United States)
- Univ. of Genova (Italy); National Research Council (CNR), Genova (Italy). Inst. for Superconductors, Innovative Materials and Devices (CNR-SPIN)
Recently, kagome materials have become an engrossing platform to study the interplay among symmetry, magnetism, topology, and electron correlation. The latest works in RMn6Sn6 (R = rare earth metal) have illustrated that this family could be intriguing to investigate various physical phenomena due to large spin-orbit coupling and strong magnetic ordering. However, combined transport and spectroscopic studies in RMn6Sn6 materials are still limited. Here, we report magnetic, magneto-transport, and angle-resolved photoemission spectroscopy measurements of a kagome magnet ErMn6Sn6 that undergoes antiferromagnetic (TN = 345 K) to ferrimagnetic (Tc = 68 K) phase transitions. We observe a large anomalous and topological Hall effect serving as transport signatures of the nontrivial Berry curvature. Our spectroscopic results complemented by theoretical calculations show the multi-orbital kagome fermiology. This work provides new insight into the tunability and interplay of topology and magnetism in a kagome magnet.
- Research Organization:
- Idaho National Laboratory (INL), Idaho Falls, ID (United States)
- Sponsoring Organization:
- Air Force Office of Scientific Research; Swedish Research Council; USDOE Office of Nuclear Energy (NE)
- Grant/Contract Number:
- AC07-05ID14517
- OSTI ID:
- 1856807
- Report Number(s):
- INL/JOU-21-62385-Rev000
- Journal Information:
- Physical Review. B, Journal Name: Physical Review. B Journal Issue: 16 Vol. 104; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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