title: Electric field control of terahertz polarization in a multiferroic manganite with electromagnons.
abstract: All-electrical control of a dynamic magnetoelectric effect is demonstrated in a classical multiferroic manganite DyMnO3, a material containing coupled antiferromagnetic and ferroelectric orders. Because of intrinsic magnetoelectric coupling with electromagnons a linearly polarized terahertz light rotates upon passing through the sample. The amplitude and the direction of the polarization rotation are defined by the orientation of ferroelectric domains and can be switched by static voltage. These experiments allow the terahertz polarization to be tuned using the dynamic magnetoelectric effect.
authors: Institute of Solid State Physics, Vienna University of Technology, A-1040 Vienna, Austria.
authors: A
authors: A
authors: Shuvaev
authors: Institute of Solid State Physics, Vienna University of Technology, A-1040 Vienna, Austria.
authors: V
authors: V
authors: Dziom
authors: Institute of Solid State Physics, Vienna University of Technology, A-1040 Vienna, Austria.
authors: Anna
authors: A
authors: Pimenov
authors: Institute of Solid State Physics, Vienna University of Technology, A-1040 Vienna, Austria.
authors: M
authors: M
authors: Schiebl
authors: Prokhorov General Physics Institute, Russian Academy of Sciences, 119991 Moscow, Russia.
authors: A A
authors: AA
authors: Mukhin
authors: II. Physikalisches Institut, Universität zu Köln, 50937 Köln, Germany.
authors: A C
authors: AC
authors: Komarek
authors: II. Physikalisches Institut, Universität zu Köln, 50937 Köln, Germany.
authors: T
authors: T
authors: Finger
authors: II. Physikalisches Institut, Universität zu Köln, 50937 Köln, Germany.
authors: M
authors: M
authors: Braden
authors: Institute of Solid State Physics, Vienna University of Technology, A-1040 Vienna, Austria.
authors: A
authors: A
authors: Pimenov