On the Theory of Magnetoelectric Coupling in Fe[sub.2]Mo[sub.3]O[sub.8]

On the Theory of Magnetoelectric Coupling in Fe[sub.2]Mo[sub.3]O[sub.8]

In the last decade, Fe[sub.2]Mo[sub.3]O[sub.8] was recognized for a giant magnetoelectric effect, the origin of which is still not clear. In the present paper, we contribute to the microscopic theory of the magnetoelectric coupling in this compound. Using crystal field theory and the molecular field...

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Veröffentlicht in:Materials 2022-11, Vol.15 (22)
Hauptverfasser: Eremin, Mikhail, Vasin, Kirill, Nurmukhametov, Alexey
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Vasin, Kirill
Nurmukhametov, Alexey
description In the last decade, Fe[sub.2]Mo[sub.3]O[sub.8] was recognized for a giant magnetoelectric effect, the origin of which is still not clear. In the present paper, we contribute to the microscopic theory of the magnetoelectric coupling in this compound. Using crystal field theory and the molecular field approximation, we calculated the low-lying energy spectrum for iron ions and their interaction with electric and magnetic fields. Classical ionic contribution to the electric polarization related to the ionic shifts is also estimated. It is found that the electronic and ionic contributions to the electric polarization are comparable and these mechanisms support each other at T
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subjects Analysis
Magnetic fields
title On the Theory of Magnetoelectric Coupling in Fe[sub.2]Mo[sub.3]O[sub.8]
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