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arXiv · 1207.5504

Field-induced continuous rotation of the polarization in multiferroic Mn$_{0.95}$Co$_{0.05}$WO$_{4}$

K. -C. Liang·R. P. Chaudhury·Y. Q. Wang·Y. Y. Sun·B. Lorenz·C. W. Chu
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Abstract

We report the observation a continuous rotation of the polarization in Mn$_{0.95}$Co$_{0.05}$WO$_{4}$ under magnetic field. At zero field, this compound shows a transition into the spiral magnetic and ferroelectric phase at 12.2K, which is the ground state, with the polarization oriented along the b-axis. Increasing b-axis magnetic fields rotate the ferroelectric polarization continuously toward the a-axis, indicating a rotation of the spin spiral plane. This rotation extends over a large field and temperature range. At a constant magnetic field of 3 Tesla, the polarization also rotates from the a-axis at the ferroelectric transition toward the b-axis upon decreasing temperature.

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K. -C. Liang, R. P. Chaudhury, Y. Q. Wang, Y. Y. Sun, B. Lorenz, C. W. Chu. 2012-07-24. Field-induced continuous rotation of the polarization in multiferroic Mn$_{0.95}$Co$_{0.05}$WO$_{4}$. https://doi.org/10.1063/1.3671419

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