Improved Ligand-Field Theoretical Calculations of R-Line Thermal Broadenings of MgO:Cr^(3+) and MgO:V^(2+)

作     者：ZHANG Zheng-Jie MA Dong-Ping 

作者机构：Department of Physics Chengdu University of Technology Chengdu 610059 China Department of Applied Physics Sichuan University Chengdu 610065 China 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2008年第50卷第11期

页      面：1245-1248页

核心收录：

学科分类：080904[工学-电磁场与微波技术] 070208[理学-无线电物理] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 08[工学] 0702[理学-物理学] 

基　　金：supported partially by National Natural Science Foundation of China under Grant No.40841012 

主　　题：improved ligand-field theory electron-phonon interaction R line thermal broadening elastic Raman scattering 

摘      要：With the values of parameters obtained from improved ligand-field theory,by taking into account all theirreducible representations and their components in EPI as well as all the levels and the admixtures of basic wavefunc-tions within d^3 electronic configuration,the R-line thermal broadenings(TB)of both MgO:Cr^(3+)and MgO:V^(2+)havemicroscopic-theoretically been *** results are in very good agreement with the experimental *** is foundthat the R-line TB of MgO:Cr^(3+)or MgO:V^(2+)comes from the first-order term of *** elastic Raman scattering ofacoustic phonons plays a dominant role in R-line TB of MgO:Cr^(3+)or MgO:V^(2+).