Energy Spectrum and Its Pressure-Induced Shift and J-T Effect of ZnTe:Mn2+

Abstract

By using strong-field scheme, the complete d5 energy matrix with D2d symmetry has been constructed. Then, by diagonalization of this matrix at normal and various pressures,the whole energy spectrum [including the ground-state zero-field splitting (GSZFS)] and its pressure-induced shift (PS) of ZnTe:Mn2+ have uniformly been calculated. The results are in very good agreement with experimental data. According to the eigenfimctions and PS, the assignments of four absorption bands have been given. By taking into account the dect of different deformations of t2 and e radial wavefunctions on and , the position of the third absorption band at normal pressure has been estimated.The tetragonal field is important for GSZFS of ZnTe:Mn2+ and its PS, which supports the existence of tetragonal Jahn-Teller distortion in ZnTe:Mn2+ The physical essentials of typical levels, GSZFS and their PS have been revealed.