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EPR theoretical study of local lattice structure in ZnS:Cr system |
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| Authors: | Tan Xiao-Ming Zhou Kang-Wei |
| Institution: | a Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China b Department of Physics, Sichuan University, Chengdu 610065, China c International Centre for Materials Physics, Academia Sinica, Shengyang 110016, China d CCAST(World Lab.), P.O. Box 8730, Beijing 100080, China |
| Abstract: | By analyzing the EPR parameters a, D and F of Cr2+ ion located at tetrahedral site in ZnS, the local structure around Cr2+ in the crystal has been investigated on the basis of the complete energy matrix for a d4 configuration in a tetragonal ligand-field within a strong-field-representation. It is shown that there exists an expansion distortion in the local lattice structure. From EPR calculation, the distortion parameters ΔR=0.13 Å and Δθ=1.417° are determined. |
| Keywords: | 75 10 Dg 76 30 &minus v |
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