Magnetic order in GdBiPt studied by x-ray resonant magnetic scattering
arXiv:1109.3521 · doi:10.1103/PhysRevB.84.220408
Abstract
Rare earth (R) half-Heusler compounds, RBiPt, exhibit a wide spectrum of novel ground states. Recently, GdBiPt has been proposed as a potential antiferromagnetic topological insulator (AFTI). We have employed x-ray resonant magnetic scattering to elucidate the microscopic details of the magnetic structure in GdBiPt below T_N = 8.5 K. Experiments at the Gd L_2 absorption edge show that the Gd moments order in an antiferromagnetic stacking along the cubic diagonal [1 1 1] direction satisfying the requirement for an AFTI, where both time-reversal symmetry and lattice translational symmetry are broken, but their product is conserved.
4 pages, 4 figures
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Cited by in corpus (11)
- Topological Materials: Weyl Semimetals
- Heusler 4.0: Tunable Materials
- Anomalous Hall effect in Weyl semimetal half Heusler compounds RPtBi (R = Gd and Nd)
- Data Storage: Review of Heusler Compounds
- Magnetic structure of GdBiPt: A candidate antiferromagnetic topological insulator
- Epitaxy, exfoliation, and strain-induced magnetism in rippled Heusler membranes
- Magnetic structure of the antiferromagnetic half-Heusler compound NdBiPt
- Robust tunability of magnetorestance in Half-Heusler RPtBi (R = Gd, Dy, Tm, and Lu) compounds
- Fragile antiferromagnetism in the heavy-fermion compound YbBiPt
- Magnon spectrum of the Weyl semimetal half-Heusler compound GdPtBi
- Anisotropic exchange and non-collinear antiferromagnets on a noncentrosymmetric fcc structure as in the half-Heuslers