Exciton magnetophotoluminescence affected by magnetic polarons and alloy fluctuations in Cd1-xMnxTe.
Exciton magnetophotoluminescence affected by magnetic polarons and alloy fluctuations in Cd1-xMnxTe.
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Cd1-xMnxTe 中磁极化子和合金涨落对激子磁光致发光的影响。
DOI：
10.1103/physrevb.52.1444
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发表时间：
1995
期刊：
影响因子：
--
通讯作者：
Aguekian
中科院分区：
文献类型：
--
作者：
Takeyama;Adachi;Takagi;Aguekian
在x= 0.12和x= 0.18的条件下，对cd1−x Mn x Te进行了极化磁光致发光。激子发光光谱的温度和磁场依赖性表现出合金电位波动引起的局域化和磁极化子之间的明显竞争过程。利用光致发光线的不对称性来判断激子定位的类型。激子磁极化子的影响在0.5-1 T左右增强，在大于3 T时消失，而合金电位波动的影响在3.5 T前呈单调增加。
Polarized magnetophotoluminescence was conducted on Cd 1− x Mn x Te with x= 0.12 and x= 0.18. Temperature and magnetic-field dependences of the exciton luminescence spectra showed clear competing processes between localization caused by alloy potential fluctuations and magnetic polarons. The asymmetry of the photoluminescence line was used to judge the type of exciton localization. The effect of the exciton magnetic polarons was most enhanced at around 0.5–1 T, and vanished at fields higher than 3 T, while that of alloy potential fluctuations exhibited a monotonic increase up to 3.5 T.