Topological magnons in the antiferromagnetic checkerboard lattice
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Universidade Federal de Minas Gerais
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Artigo de periódico
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Topological magnon excitations have attracted much attention in the latter years, and have become a very active area of research. Motivated by this, we investigate here spin Hall and thermal spin Hall conductivities in the antiferromagnetic checkerboard lattice. We include the Dzyaloshinskii-Morya interaction, and for spin S > 1/2 a single ion anisotropy term. We use the standard spin wave approach and study the effect of magnon-magnon interactions using a self consistent mean-field spin wave theory.
Abstract
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Antiferromagnetismo, Isoladores topológicos
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Antiferromagnet, Checkerboard lattice, Topological insulators
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https://www.sciencedirect.com/science/article/pii/S1386947719317345