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Evolution of Magnetic Interactions in Sb-substituted MnBi2Te4
S. X. M. Riberolles, Q. Zhang, Elijah Gordon +4
The Mn(BiSb)Te series is purported to span from antiferromagnetic (AF) topological insulator at x = 0 to a trivial AF insulator at x = 1. Here we report on neut…
Spin Dynamics in the Antiferromagnetic Oxypnictides and Fluoropnictides: LaMnAsO, LaMnSbO, and BaMnAsF
Farhan Islam, Elijah Gordon, Pinaki Das +5
Inelastic neutron scattering (INS) from polycrystalline antiferromagnetic LaMnAsO, LaMnSbO, and BaMnAsF are analyzed using a Heisenberg model in the framework of the…
Competing magnetic interactions in the antiferromagnetic topological insulator MnBiTe
J. -Q. Yan, D. Pajerowski, Liqin Ke +6
The antiferromagnetic (AF) compound MnBiTe is suggested to be the first realization of an antiferromagnetic (AF) topological insulator. Here we report on inelastic neut…
Spin density wave as a superposition of two magnetic states of opposite chirality and its implications
Elijah E. Gordona, Shahab Derakhshanb, Corey M. Thompsonc +1
A magnetic solid with weak spin frustration tends to adopt a noncollinear magnetic structure such as cycloidal structure below a certain temperature and a spin density wave (SDW) s…
Spin orientations of the spin-half Ir4+ ions in Sr3NiIrO6, Sr2IrO4 and Na2IrO3: Density functional, perturbation theory and Madelung potential analyses
Elijah E. Gordon, Hongjun Xiang, Jürgen Köhler +1
The spins of the low-spin Ir4+ (S = 1/2, d5) ions at the octahedral sites of the oxides Sr3NiIrO6, Sr2IrO4 and Na2IrO3 exhibit preferred orientations with respect to their IrO6 oct…