Nature Communications (Feb 2021)

Magnetic crystalline-symmetry-protected axion electrodynamics and field-tunable unpinned Dirac cones in EuIn2As2

  • S. X. M. Riberolles,
  • T. V. Trevisan,
  • B. Kuthanazhi,
  • T. W. Heitmann,
  • F. Ye,
  • D. C. Johnston,
  • S. L. Bud’ko,
  • D. H. Ryan,
  • P. C. Canfield,
  • A. Kreyssig,
  • A. Vishwanath,
  • R. J. McQueeney,
  • L. -L. Wang,
  • P. P. Orth,
  • B. G. Ueland

DOI
https://doi.org/10.1038/s41467-021-21154-y
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 7

Abstract

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Magnetic symmetry is a vital factor to determine exotic topological phases. Here, Riberolles et al. demonstrate a helical antiferromagnetic order in EuIn2As2 which makes it a magnetic topological-crystalline axion insulator.