Gd_3Sc_2Al_3O_(12)∶Cr^(3+)的能谱以及R线热移位的理论研究  

Theoretical research on the energy spectrum and R line thermal shifts of Gd_3Sc_2Al_3O_(12):Cr^(3+)

作　　者：杨阔[1] 宋永[1] 戴宏[2] 

机构地区：[1]阿坝师范高等专科学校,四川成都611741 [2]云南大学物理科学技术学院,云南昆明650091

出　　处：《云南大学学报（自然科学版）》2010年第6期665-669,675,共6页Journal of Yunnan University(Natural Sciences Edition)

基　　金：阿坝师专校级重点资助项目(ASA10-15)

摘　　要：通过对角化由强场方案和无耦合的三角基建立的三角畸变的八面体场中的d3离子完全能量矩阵,对Gd3Sc2Al3O12:Cr3+在低温下的能谱及波函数进行了拟合计算.同时分析了各个参数对部分能级的影响,定量地显示了能级分裂的影响因素.利用得到的波函数,采用光谱热移位理论,对Gd3Sc2Al3O12:Cr3+的R线热移位现象进行了分析和计算,各项计算结果均与实验符合较好,进一步反映了热移位的微观机制.Based on diagonaling the complete energy matrix in a trigonally-distorted octahedron-field constructed from the strong field scheme and non-coupling trigonal bases,the energy spectra and wave functions of Gd3Sc2Al3O12：Cr3 ＋ at low temperature and normal pressure are calculated.In the light of the wave function and the thermal shifts of spectra,we have calculated and analyzed the R line＇s thermal shift and we have found that the result is in agreement with the experimental data,which reveals the micro-mechanism of thermal shifts more profoundly.

关 键 词：晶体场 能谱 完全能量矩阵 热移位 

分 类 号：O482.3[理学—固体物理]