Effect of magnon bands on quantum entanglement in two-dimensional ferromagnets in the checkerboard lattice
Federal Center for Technological Education of Minas Gerais, 30510-000, Belo Horizonte, MG, Brazil
Accepted: 4 April 2022
Published online: 5 May 2022
We analyze the effect of topological magnons on quantum entanglement in the two-dimensional ferromagnet on checkerboard lattice in the presence of Dzyaloshinskii–Moriya interaction, magneto-crystalline anisotropy and magnetic external field. We study the influence of the behavior of the Berry curvature as well as the spin Nernst coefficient on quantum entanglement, where we obtained the von Neumann entropy as a function of the strength of the Dzyaloshinskii–Moriya term and next-nearest neighbor interactions with the other parameters of the system held fixed. The aim is to analyze the influence of magnon bands on von Neumann entropy.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2022