Campus Units

Physics and Astronomy, Ames Laboratory

Document Type

Article

Publication Version

Published Version

Publication Date

12-1-2011

Journal or Book Title

Physical Review B

Volume

84

Issue

22

First Page

220408(R)

DOI

10.1103/PhysRevB.84.220408

Abstract

Rare-earth (R) half-Heusler compounds RBiPt exhibit a wide spectrum of interesting ground states. We have employed x-ray resonant magnetic scattering to elucidate the microscopic details of the magnetic structure in GdBiPt below TN=8.5 K. Experiments at the Gd L2 absorption edge show that the Gd moments order in an antiferromagnetic stacking along the cubic diagonal [111] direction, satisfying one of the requirements for an antiferromagnetic topological insulator as proposed previously, where both time-reversal symmetry and lattice translational symmetry are broken, but their product is conserved.

Comments

This article is published as Kreyssig, A., M. G. Kim, J. W. Kim, D. K. Pratt, S. M. Sauerbrei, S. D. March, G. R. Tesdall et al. "Magnetic order in GdBiPt studied by x-ray resonant magnetic scattering." Physical Review B 84, no. 22 (2011): 220408. DOI: 10.1103/PhysRevB.84.220408. Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

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