EPR of Cu(II) in sarcosine cadmium chloride: probe into dopant site - symmetry and copper-sarcosine interaction

被引:8
|
作者
Padiyan, DP [1 ]
Muthukrishnan, C
Murugesan, R
机构
[1] Manonmariam Sundaranar Univ, Dept Phys, Tirunelveli 627012, India
[2] Madurai Kamaraj Univ, Sch Chem, Madurai 625021, Tamil Nadu, India
关键词
EPR; rhombic symmetry; Shf; admixture coefficients; MO coefficients;
D O I
10.1016/S0304-8853(00)00555-2
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The electron paramagnetic resonance spectra of Cu(IT) doped sarcosine cadmium chloride single crystals have been investigated at room temperature. Experimental results reveal that the Cu(II) ion enters the lattice interstitially. The observed superhyperfine lines indicate the superposition of two sets of quintet structure with interaction of nitrogen atoms and the two isotopes of copper. The spin Hamiltonian parameters are evaluated by Schonland method and the electric field symmetry around the copper ion is rhombic. An admixture of d(z)(2) orbital with the d(x2-y2) ground state is observed. Evaluation of MO coefficients reveals that the in-plane interaction between copper and nitrogen is strong in this lattice. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:251 / 256
页数:6
相关论文
共 12 条