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Cu0.5Zr2(PO4)3中Cu^(2+)离子中心各向异性g因子研究
引用本文:魏望和,侯春菊,卢敏,刘维清.Cu0.5Zr2(PO4)3中Cu^(2+)离子中心各向异性g因子研究[J].山东大学学报(自然科学版),2012(7):26-29.
作者姓名:魏望和  侯春菊  卢敏  刘维清
作者单位:江西理工大学理学院,江西赣州341000
基金项目:江西省教育厅青年科学基金资助项目(gjj11129)
摘    要:采用3d离子斜方对称g因子的高阶微扰公式计算了Nasico型晶体Cu0.5Zr2(PO4)3中Cu^(2+)离子中心各向异性g因子(gx,gy,gz),其中斜方晶场参量由重叠模型并联系晶体中Cu^(2+)离子所处的局部结构确定。研究表明,晶体中Cu^(2+)离子中心配体八面体平面键角相比理想斜方对称的90°要小10°左右,由此所得的因子计算结果与实验符合较好。

关 键 词:电子顺磁共振(EPR)  重叠模型  Cu^(2+)离子  Cu0  5Zr2(PO4)3晶体

Theoretical explanation of the anisotropic g factors for Cu^(2+) center in Cu0.5 Zr2 (PO4)3 crystal
WEI Wang-he,HOU Chun-ju,LU Min,LIU Wei-qing.Theoretical explanation of the anisotropic g factors for Cu^(2+) center in Cu0.5 Zr2 (PO4)3 crystal[J].Journal of Shandong University(Natural Science Edition),2012(7):26-29.
Authors:WEI Wang-he  HOU Chun-ju  LU Min  LIU Wei-qing
Institution:( Faculty of Science, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, China)
Abstract:The anisotropic g factors ( gx, gy, gz ) for the rhombic Cu2. center in Nasico type Cu0 ~ Zr2 ( PO4 ) 3 crystal were theoretically investigated by using the high-order formulas of these parameters for a 3d9 ion in rhombically elonga- ted octahedral. The rhornbic field parameters in these formulas were determined from the superposition model and the local geometry for Cu^(2+) center. The result shows that the planar bond angle is about 10° smaller than the ideal 90° in orthorhombic D2h symmetry for Cu^(2+) center in crystal and the theoretical g factors based on the above angular are in good agreement with the experimental data.
Keywords:electron paramagnetic resonance  superposition model  Cu^(2+) ion  Cu0  5 Zr2 ( PO4) 3 crystal
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