We illustrate the magnetoelectric effect conditioned by the Katsura-Nagaosa-Balatsky (KNB) mechanism within the frames of exactly solvable spin-1/2 XY 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.
@article{arxiv.1507.06457,
title = {Magnetism-driven ferroelectricity in spin-1/2 $XY$ chains},
author = {Oleg Menchyshyn and Vadim Ohanyan and Taras Verkholyak and Taras Krokhmalskii and Oleg Derzhko},
journal= {arXiv preprint arXiv:1507.06457},
year = {2015}
}