On the symmetry of phosphorous doped ZnSe

Bulletin of materials science

N Sankar²  K Ramachandran¹ 

[1] Department of Theoretical Physics, Madurai Kamaraj University, Maduri 625 021, India$$Department of Theoretical Physics, Madurai Kamaraj University, Maduri 625 021, IndiaDepartment of Theoretical Physics, Madurai Kamaraj University, Maduri 625 021, India$$;Department of Physics, Yadava College, Madurai 625 014, India$$Department of Physics, Yadava College, Madurai 625 014, IndiaDepartment of Physics, Yadava College, Madurai 625 014, India$$

关键词: ZnSe;    localized vibrational modes;    $T_d$ and $C_{3V}$ symmetries;    Jahn Teller distortion;    Green’s function;    molecular model.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

The site symmetry of P doped ZnSe is analysed in detail here, as the recent experiments suggest two possible symmetries $T_d$ and $C_{3V}$. The reduction to $C_{3V}$ is attributed to the presence of natural impurity, Ga. Our calculations based on molecular model and Green’s functions suggest that the symmetry $C_{3V}$ is possible with ZnSe : P when Jahn Teller distortion of about ∼ 0.2 �? (towards one of Zn atom) is assumed. This has been supported by other experiments.

【 授权许可】

Unknown