Chin. J. Semicond. > Volume 12 > Issue 2 > Article Number: 125

GaAs:Cr中的Cr~(4+)(3d~2)态的光激发电子顺磁共振研究

毛晋昌 , 傅济时 , 吴恩 , 秦国刚 , 王永鸿 and 马碧春

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Abstract: 本文报道GaAs∶Cr中Cr~(4+)(3d~2)态的光激发电子顺磁共振(EPR)研究结果.实验表明,Cr_(4+)的EPR信号强度对温度关系在20-30K间达极大值.中子辐照能抑制Cr~(4+)的EPR信号,但对Cr~(2+)的EPR信号基本无影响.实验首次发现Cr~(4+)EPR信号在光照停止后先陡然增大然后逐渐下降,而不是光照停止后随即单调下降的现象.

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History

Manuscript received: 19 August 2015 Manuscript revised: Online: Published: 01 February 1991

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