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Electric Control of Spin Helicity in a Magnetic Ferroelectric

Y. Yamasaki·H. Sagayama·T. Goto·M. Matsuura·K. Hirota·T. Arima·Y. Tokura
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Abstract

Magnetic ferroelectrics or multiferroics, which are currently extensively explored, may provide a good arena to realize a novel magnetoelectric function. Here we demonstrate the genuine electric control of the spiral magnetic structure in one of such magnetic ferroelectrics, TbMnO3. A spin-polarized neutron scattering experiment clearly shows that the spin helicity, clockwise or counter-clockwise, is controlled by the direction of spontaneous polarization and hence by the polarity of the small cooling electric field.

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Y. Yamasaki, H. Sagayama, T. Goto, M. Matsuura, K. Hirota, T. Arima, Y. Tokura. 2007-01-18. Electric Control of Spin Helicity in a Magnetic Ferroelectric. https://doi.org/10.1103/physrevlett.100.219902

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