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Control of multiferroic domains by external electric fields in TbMnO₃

: Stein, J.; Baum, Max; Holbein, S.; Cronert, T.; Hutanu, V.; Komarek, A.C.; Braden, M.


Journal of Physics. Condensed Matter 27 (2015), Nr.44, Art. 446001, 7 S.
ISSN: 0953-8984
Fraunhofer INT ()
magnetic structure; multiferroics; neutron diffraction; domain

The control of multiferroic domains through external electric fields has been studied by dielectric measurements and by polarized neutron diffraction on single-crystalline TbMnO₃. Full hysteresis cycles were recorded by varying an external field of the order of several kV mm⁻¹ and by recording the chiral magnetic scattering as well as the charge in a sample capacitor. Both methods yield comparable coercive fields that increase upon cooling.