Progress and prospects in magnetic topological materials

B. Andrei Bernevig (), Claudia Felser and Haim Beidenkopf
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B. Andrei Bernevig: Princeton University
Claudia Felser: Max Plank Institute for Chemical Physics of Solids
Haim Beidenkopf: Weizmann Institute of Science

Nature, 2022, vol. 603, issue 7899, 41-51

Abstract: Abstract Magnetic topological materials represent a class of compounds with properties that are strongly influenced by the topology of their electronic wavefunctions coupled with the magnetic spin configuration. Such materials can support chiral electronic channels of perfect conduction, and can be used for an array of applications, from information storage and control to dissipationless spin and charge transport. Here we review the theoretical and experimental progress achieved in the field of magnetic topological materials, beginning with the theoretical prediction of the quantum anomalous Hall effect without Landau levels, and leading to the recent discoveries of magnetic Weyl semimetals and antiferromagnetic topological insulators. We outline recent theoretical progress that has resulted in the tabulation of, for the first time, all magnetic symmetry group representations and topology. We describe several experiments realizing Chern insulators, Weyl and Dirac magnetic semimetals, and an array of axionic and higher-order topological phases of matter, and we survey future perspectives.

Date: 2022
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DOI: 10.1038/s41586-021-04105-x

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