EPR and optical absorption studies of Cu2+ doped L-histidinium dihydrogen phosphate-phosphoric acid single crystal

被引：6
|
作者：
Prabakaran, R. [1 ]
Sheela, K. Juliet [1 ]
Rosy, S. Margret [1 ]
Krishnan, S. Radha [2 ]
Shanmugam, V. M. [2 ]
Subramanian, P. [1 ]
机构：
[1] Deemed Univ, Gandhigram Rural Inst, Dept Phys, Dindigul 624302, Tamil Nadu, India
[2] Cent Electrochem Res Inst, CSIR, Karaikkudi 630006, Tamil Nadu, India
来源：
PHYSICA B-CONDENSED MATTER | 2014年 / 434卷
关键词：
EPR; Single crystal; Optical absorption studies; Cu2+; Spin Hamiltonian; GROWTH;
D O I：
10.1016/j.physb.2013.11.019
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The EPR spectra of Cu2+ in L-histidinium dihydrogen phosphate phosphoric acid at room temperature reveal the presence of two magnetically inequivalent Cu2+ sacs in the lattice. The principal values of the g- and A-tensors indicate existence of rhombic symmetry around the Cu2+ ion. From the direction cosines of the principal values of the g- and A-tensors, the locations of Cu2+ in the lattice have been identified as substitutional sites. Optical absorption study shows four bands confirm the rhombic symmetry. Photoluminescence study also confirms the rhombic symmetry around the ions. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：155 / 158
页数：4
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