title: Polarization reversal in multiferroic TbMnO3 with a rotating magnetic field direction.
abstract: For the memory application of magnetoelectric multiferroics, not only bistability (i.e., ferroelectricity) but also the switching of the polarization direction with some noneverlasting stimulus is necessary. Here, we report a novel method for the electric polarization reversal in TbMnO3 without the application of an electric field or heat. The direction of the magnetic-field-induced polarization along the a axis (Pa) is memorized even in the zero field where Pa is absent. The polarization direction can be reversed by rotating the magnetic-field direction in the ab plane.
authors.affiliation: Department of Physics, Tohoku University, Sendai 980-8578, Japan.
authors.forename: N
authors.initials: N
authors.lastname: Abe
authors.forename: K
authors.initials: K
authors.lastname: Taniguchi
authors.forename: S
authors.initials: S
authors.lastname: Ohtani
authors.forename: T
authors.initials: T
authors.lastname: Takenobu
authors.forename: Y
authors.initials: Y
authors.lastname: Iwasa
authors.forename: T
authors.initials: T
authors.lastname: Arima