Electric field control of terahertz polarization in a multiferroic manganite with electromagnons.
Electric field control of terahertz polarization in a multiferroic manganite with electromagnons.
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DOI：
10.1103/physrevlett.111.227201
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发表时间：
2013-11
影响因子：
8.6
通讯作者：
A. Shuvaev;V. Dziom;A. Pimenov;M. Schiebl;A. Mukhin;A. Komarek;T. Finger;M. Braden;A. Pimenov
中科院分区：
文献类型：
--
作者：
A. Shuvaev;V. Dziom;A. Pimenov;M. Schiebl;A. Mukhin;A. Komarek;T. Finger;M. Braden;A. Pimenov
动态磁电效应的全电控制证明在经典的多铁性锰氧化物DyMnO 3，一种材料，包含耦合的反铁磁和铁电订单。由于与电磁振子的固有磁电耦合，线性偏振的太赫兹光在穿过样品时旋转。极化旋转的幅度和方向由铁电畴的取向决定，并且可以通过静态电压进行切换。这些实验允许使用动态磁电效应来调谐太赫兹偏振。
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.