paper

Magnetism-driven ferroelectricity in spin-1/2 chains

arXiv:1507.06457 · doi:10.1103/PhysRevB.92.184427

Abstract

We illustrate the magnetoelectric effect conditioned by the Katsura-Nagaosa-Balatsky (KNB) mechanism within the frames of exactly solvable spin-1/2 chains. Due to three-spin interactions which are present in our consideration, the magnetization (polarization) is influenced by the electric (magnetic) field even in the absence of the magnetic (electric) field. We also discuss a magnetoelectrocaloric effect examining the entropy changes under the isothermal varying of the magnetic or/and electric field.

8 pages, 6 figures

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