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The magnetic orders induced ferroelectricity

C. D. Hu
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Abstract

We studied the ferroelectricity of magnetic oxides in which its emergence coincides with the onset of a second incommensurate magnetic order. We solved for the wave function of e_{g} electrons in the presence of magnetic orders. The coupling between the magnetic and electric orders is provided by the spin-orbit interaction. It was found that the net electric dipole moment of the system came from the bond between the transition metal and oxygen atoms. The anisotropy of d-orbitals also played an important role. Finally, the form of the coupling leads us to the conclusion that it is an improper ferroelectricity.

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C. D. Hu. 2006-08-22. The magnetic orders induced ferroelectricity. https://arxiv.org/abs/cond-mat/0608470

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