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Updated: Feb 18, 2026

Sputter Growth and Characterization of Metamagnetic B2-ordered FeRh Epilayers
Published on: October 5, 2013
Linear magnetoelectric effect in göthite, α-FeOOH
N V Ter-Oganessian1, A A Guda2, V P Sakhnenko3
1Institute of Physics, Southern Federal University, Rostov-on-Don, 344090, Russian Federation. nikita.teroganessian@gmail.com.
Abstract:
By means of symmetry analysis, density functional theory calculations, and Monte Carlo simulations we show that goethite, α-FeOOH, is a linear magnetoelectric below its Néel temperature T N = 400 K. The experimentally observed magnetic field induced spin-flop phase transition results in either change of direction of electric polarization or its suppression. Estimated value of magnetoelectric coefficient is 0.57 μC · m-2 · T-1. The abundance of goethite in nature makes it arguably the most widespread magnetoelectric material.
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