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arXiv · 1310.5293

Theory of magneto-electric susceptibility in multiferroic chiral magnets

Ye-Hua Liu·Jung Hoon Han·A. A. Omrani·H. M. Rønnow·You-Quan Li
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Abstract

We present a theoretical examination of the magneto-electric response in the recently discovered multiferroic insulator Cu$_2$OSeO$_3$. Combining Monte Carlo simulation and Ginzburg-Landau analysis we predict the response in each of the magnetic phases, including helical, conical, ferromagnetic and Skyrmion crystal phases, both for thin film and bulk systems. A common feature for all non-collinear phases is that the magneto-electric susceptibility increases linearly with the applied magnetic field. Being both calculable and measurable, the magneto-electric susceptibility can serve as a new powerful probe to detect and investigate magnetic phases and phase transitions in multiferroic chiral magnets in general.

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Ye-Hua Liu, Jung Hoon Han, A. A. Omrani, H. M. Rønnow, You-Quan Li. 2013-10-20. Theory of magneto-electric susceptibility in multiferroic chiral magnets. https://arxiv.org/abs/1310.5293

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