Large selective magneto-optic response from magnetic semiconducting layered structures
Large selective magneto-optic response from magnetic semiconducting layered structures
复制标题
磁半导体层状结构的大选择性磁光响应
DOI：
10.1103/physrevb.61.r10571
复制
发表时间：
2000
影响因子：
3.7
通讯作者：
B. Harmon
中科院分区：
文献类型：
--
作者：
Y. Uspenskiǐ;B. Harmon
考虑了由磁性半导体和金属组成的具有共振态的层状结构的磁光(MO)谱。结果表明，当左、右圆波的共振频率差足够大时，共振态上的散射会产生较大的MO响应。对于特定螺旋度的光波，这种响应是非常有选择性的，并且选择随着磁化强度的反转而反转。对Ag/EUS/Ag结构进行的数值计算和分析估计表明，在实验上应该可以获得大的选择性分子轨道响应。(C)2000年美国物理学会。
Magneto-optic (MO) spectra are considered for layered structures consisting of a magnetic semiconductor and a metal and having a resonant state. It is found that scattering on the resonant state results in a large MO response when the difference in resonant frequencies for left and right circular waves is large enough. The response is very selective for light waves of a certain helicity, and selection is reversed with magnetization reversal. Numerical calculations carried out for the Ag/EuS/Ag structure as well as analytical estimations show that a large selective MO response should be attainable experimentally. (c) 2000 The American Physical Society.