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Observation of band splitting and magnetically induced band structure reconstruction in TbTi3⁢Bi4

Journal Article · · Physical Review. B
DOI:https://doi.org/10.1103/8wmy-45m7· OSTI ID:3001801
The magnetic kagome materials are a promising platform to study the interplay between magnetism, topology, and correlated electronic phenomena. Among these materials, the 𝑅⁢Ti3⁢Bi4 family received a great deal of attention recently because of its chemical versatility and wide range of magnetic properties. Here, we use angle-resolved photoemission spectroscopy measurements and density functional theory calculations to investigate the electronic structure of TbTi3⁢Bi4 in paramagnetic and antiferromagnetic phases. Our experimental results show the presence of unidirectional band splitting of unknown nature in both phases. In addition, we observed a complex reconstruction of the band structure in the antiferromagnetic phase. Furthermore, some aspects of this reconstruction are consistent with effects of additional periodicity introduced by the magnetic ordering vector, while the nature of several other features remains unknown.
Research Organization:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division (MSE)
Grant/Contract Number:
AC02-07CH11358
OSTI ID:
3001801
Journal Information:
Physical Review. B, Journal Name: Physical Review. B Journal Issue: 15 Vol. 112; ISSN 2469-9950; ISSN 2469-9969
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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