Terahertz time-domain observation of spin reorientation in orthoferrite ErFeO3 through magnetic free induction decay.
Terahertz time-domain observation of spin reorientation in orthoferrite ErFeO3 through magnetic free induction decay.
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DOI：
10.1103/physrevlett.110.137204
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发表时间：
2013-03
影响因子：
8.6
通讯作者：
K. Yamaguchi;T. Kurihara;Y. Minami;M. Nakajima;T. Suemoto
中科院分区：
文献类型：
--
作者：
K. Yamaguchi;T. Kurihara;Y. Minami;M. Nakajima;T. Suemoto
对ErFeO3进行了太赫兹时域光谱分析。通过两种磁共振模式的发射，我们成功地观察到了自旋重取向跃迁。根据单晶的取向，可以通过两种模式之间的模式切换或发射的偏振变化来检测重定向。该方法在不受电子激发和加热等干扰的情况下实现了皮秒分辨率的重定向观测，有望为利用太赫兹脉冲观测超快重定向打开大门。
Terahertz time domain spectroscopy was performed on orthoferrite ErFeO3. Through the emission from the two magnetic resonance modes, we succeeded in observing the spin reorientation transition. Depending on the orientation of the single crystal, the reorientation can be detected as either mode switching between the two modes or polarization change of the emission. This method enables picosecond resolved observation of the reorientation without disturbances such as electronic excitation and heating, and it is expected to open the doorway to observe ultrafast reorientation with the terahertz pulse.