TY - JOUR
T1 - Identifying Band Structure Changes of FePS3 across the Antiferromagnetic Phase Transition
AU - Pestka, Benjamin
AU - Strasdas, Jeff
AU - Bihlmayer, Gustav
AU - Budniak, Adam Krzysztof
AU - Liebmann, Marcus
AU - Leuth, Niklas
AU - Boban, Honey
AU - Feyer, Vitaliy
AU - Cojocariu, Iulia
AU - Baranowski, Daniel
AU - Mearini, Simone
AU - Amouyal, Yaron
AU - Waldecker, Lutz
AU - Beschoten, Bernd
AU - Stampfer, Christoph
AU - Plucinski, Lukasz
AU - Lifshitz, Efrat
AU - Kratzer, Peter
AU - Morgenstern, Markus
N1 - Publisher Copyright: © 2024 American Chemical Society.
PY - 2024/11/26
Y1 - 2024/11/26
N2 - Magnetic 2D materials enable interesting tuning options of magnetism. As an example, the van der Waals material FePS3, a zig-zag-type intralayer antiferromagnet, exhibits very strong magnetoelastic coupling due to the different bond lengths along different ferromagnetic and antiferromagnetic coupling directions enabling elastic tuning of magnetic properties. The likely cause of the length change is the intricate competition between direct exchange of the Fe atoms and superexchange via the S and P atoms. To elucidate this interplay, we study the band structure of exfoliated FePS3 by μm scale ARPES (angular resolved photoelectron spectroscopy), both, above and below the Néel temperature TN. We found three characteristic changes across TN. They involve S 3p-type bands, Fe 3d-type bands and P 3p-type bands, respectively, as attributed by comparison with density functional theory calculations (DFT + U). This highlights the involvement of all the atoms in the magnetic phase transition providing independent evidence for the intricate exchange paths.
AB - Magnetic 2D materials enable interesting tuning options of magnetism. As an example, the van der Waals material FePS3, a zig-zag-type intralayer antiferromagnet, exhibits very strong magnetoelastic coupling due to the different bond lengths along different ferromagnetic and antiferromagnetic coupling directions enabling elastic tuning of magnetic properties. The likely cause of the length change is the intricate competition between direct exchange of the Fe atoms and superexchange via the S and P atoms. To elucidate this interplay, we study the band structure of exfoliated FePS3 by μm scale ARPES (angular resolved photoelectron spectroscopy), both, above and below the Néel temperature TN. We found three characteristic changes across TN. They involve S 3p-type bands, Fe 3d-type bands and P 3p-type bands, respectively, as attributed by comparison with density functional theory calculations (DFT + U). This highlights the involvement of all the atoms in the magnetic phase transition providing independent evidence for the intricate exchange paths.
KW - angular resolved photoelectron spectroscopy
KW - density functional theory
KW - layered magnetism
KW - magnetic 2D materials
KW - transition metal phosphorus trisulfides.
UR - http://www.scopus.com/inward/record.url?scp=85210282779&partnerID=8YFLogxK
U2 - https://doi.org/10.1021/acsnano.4c12520
DO - https://doi.org/10.1021/acsnano.4c12520
M3 - مقالة
SN - 1936-0851
VL - 18
SP - 32924
EP - 32931
JO - ACS Nano
JF - ACS Nano
IS - 47
ER -