Rare earth magnetism and ferroelectricity in RMnO3

R Feyerherm; E Dudzik; O Prokhnenko; D N Argyriou

doi:10.1088/1742-6596/200/1/012032

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arXiv · 0905.4019

Rare earth magnetism and ferroelectricity in RMnO3

R Feyerherm·E Dudzik·O Prokhnenko·D N Argyriou

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Abstract

Magnetic rare earths R have been proven to have a significant effect on the multiferroic properties of the orthorhombic manganites RMnO3. A re-examination of previous results from synchrotron based x-ray scattering experiments suggests that symmetric exchange striction between neighboring R and Mn ions may account for the enhancement of the ferroelectric polarization in DyMnO3 as well as the magnetic-field induced ferroelectricity in GdMnO3. In general, adding a second magnetic species to a multiferroic material may be a route to enhance its ferroelectric properties.

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R Feyerherm, E Dudzik, O Prokhnenko, D N Argyriou. 2009-05-25. Rare earth magnetism and ferroelectricity in RMnO3. https://doi.org/10.1088/1742-6596/200/1/012032

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