Spin Model for Nontrivial Magnetic Orders in the Inverse-Perovskite Antiferromagnets

Abstract

Nontrivial magnetic orders in the inverse-perovskite manganese nitrides are theoretically studied by constructing a classical spin model describing the magnetic anisotropy and frustrated exchange interactions inherent in specific crystal and electronic structures of these materials. With a replica-exchange Monte-Carlo technique, a theoretical analysis of this model reproduces the experimentally observed triangular Γ^{5g} and Γ^{4g} spin ordered patterns and the systematic evolution of magnetic orders. Our work solves a 40-year-old problem of nontrivial magnetism for the inverse-perovskite manganese nitrides and provides a firm basis for clarifying the magnetism-driven negative thermal expansion phenomenon discovered in this class of materials.

arXiv comment5 pages, 5 figures

References in corpus (5)

• Spin current and magneto-electric effect in non-collinear magnets
• Emergent electromagnetism in solids
• Large magnetic entropy change near room temperature in antipervoskite SnCMn3
• New anti-perovskite-type Superconductor ZnNyNi3
• Antiferromagnetic Ising Model on Inverse Perovskite Lattice

Cited by in corpus (7)

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• Anomalous Hall conductivity control in Mn${}_3$NiN antiperovskite by epitaxial strain along the kagome plane
• Theory of Magnetism-Driven Negative Thermal Expansion in Inverse Perovskite Antiferromagnets
• Thermal Expansion and Volume Magnetostriction in Breathing Pyrochlore Magnets LiACr${}_4$X${}_8$ (A = Ga, In, X = O, S)
• Phase transitions associated with magnetic-field induced topological orbital momenta in a non-collinear antiferromagnet
• Magnetic particles and strings in iron langasite
• Optimization of reactively sputtered Mn3GaN films based on resistivity measurements