Light‐induced precession of ferromagnetically coupled Mn spins in ferromagnetic (Ga,Mn)As

Light‐induced precession of ferromagnetically coupled Mn spins in ferromagnetic (Ga,Mn)As
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DOI：
10.1002/pssc.200672884
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发表时间：
2006-12
期刊：
Physica Status Solidi (c)
影响因子：
--
通讯作者：
H. Takechi;A. Oiwa;K. Nomura;T. Kondo;H. Munekata
H. Takechi;A. Oiwa;K. Nomura;T. Kondo;H. Munekata
中科院分区：
其他
文献类型：
--
作者：
H. Takechi;A. Oiwa;K. Nomura;T. Kondo;H. Munekata

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通过单色、泵浦和探针实验采集的时间分辨磁光信号，系统地研究了铁磁耦合Mn自旋在皮到亚纳秒时间范围内的光诱导进动。诱导进动是根据磁各向异性的相对变化来讨论的，至少部分是由非热过程引起的。
Light-induced precession of ferromagnetically-coupled Mn spins is studied systematically in the pico- to sub-nano-second time regime through time-resolved magneto-optical signals collected by one-color, pump-and-probe experiments. Induced precession is discussed in terms of a relative change in magnetic anisotropy originated at least in part by the non-thermal process.