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Spectra of the New Type Diluted Magnetic Semiconductors Zn1-xCoxSe and Zn1-xCoxS

CHEN Chenjia, WANG Xuezhong, LIU Guobin   

  1. Department of Physics, Peking University, Beijing 100871
  • Received:1995-03-11 Online:1995-09-20 Published:1995-09-20

新型稀磁半导体 Zn1-xCoxSe和Zn1-xCoxS的能谱


  1. 北京大学物理学系,北京,100871

Abstract: Spectra of the new type diluted magnetic semiconductors Zn1-xCoxSe and Zn1-xCoxS related to transitions between the dif-ferent energy level of Co2+ ions for states of d7 configuration have been calculated by crystal field theory. The comparison of calculated and observed spectra of Co2+ ions have been given. Bothare in good agreement in the low energy level part. Crystal field Dq, Racah B, C and spin-orbit coupling λ parameters have been obtained and observed spectra of Co2+in Zn1-xCoxSe and Zn1-xCoxS have been designeted, respectively.

Key words: diluted magnetic semiconductors, crystal field, spin-orbit coupling

摘要: 本文报道用晶体场理论对新型稀磁半导体 Zn1-xCoxSe和Zn1-xCoxS 中Co2+离子不同能级间的跃迁进行计算的结果。与实验观测结果进行了比较,获得了相应的晶场参量Dq,Racah静电参量B,C和自旋-轨道耦合参数λ。本文对 Zn1-xCoxSe和Zn1-xCoxS分别指认了观测到的Co2+离子能级间的跃迁。对较低能级部分,实验结果与理论计算符合较好。

关键词: 稀磁半导体, 晶体场, 自旋-轨道耦合

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