Fedchenko O, Smejkal L, Kallmayer M, Lytvynenko Y, Medjanik K, Babenkov S, Vasilyev D, Klaeui M, Demsar J, Schonhense G, Jourdan M, Sinova J, Elmers HJ (2022)
Publication Type: Journal article
Publication year: 2022
Book Volume: 34
Article Number: 425501
Journal Issue: 42
Using momentum microscopy with sub-μm spatial resolution, allowing momentum resolved photoemission on individual antiferromagnetic domains, we observe an asymmetry in the electronic band structure, E(k)≠E(-k), in Mn2Au. This broken band structure parity originates from the combined time and parity symmetry, PT, of the antiferromagnetic order of the Mn moments, in connection with spin-orbit coupling. The spin-orbit interaction couples the broken parity to the Néel order parameter direction. We demonstrate a novel tool to image the Néel vector direction, N, by combining spatially resolved momentum microscopy with ab-initio calculations that correlate the broken parity with the vector N.
APA:
Fedchenko, O., Smejkal, L., Kallmayer, M., Lytvynenko, Y., Medjanik, K., Babenkov, S.,... Elmers, H.J. (2022). Direct observation of antiferromagnetic parity violation in the electronic structure of Mn2Au. Journal of Physics: Condensed Matter, 34(42). https://doi.org/10.1088/1361-648X/ac87e6
MLA:
Fedchenko, Olena, et al. "Direct observation of antiferromagnetic parity violation in the electronic structure of Mn2Au." Journal of Physics: Condensed Matter 34.42 (2022).
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