Revealing the Spin-Hamiltonian and Characteristic Parameters of Paramagnetic Centers in Cu2+-Doped Potassium Metabisulfite (K2S2O5) Single Crystal by Electron Paramagnetic Resonance Technique

被引：0
|
作者：
Yildirim, Ilkay [1 ]
Karabulut, Bunyamin [2 ]
机构：
[1] Ondokuz Mayis Univ, Fac Arts & Sci, Dept Phys, TR-55139 Kurupelit, Samsun, Turkey
[2] Ondokuz Mayis Univ, Dept Comp Engn, Fac Engn, TR-55139 Kurupelit, Samsun, Turkey
来源：
APPLIED MAGNETIC RESONANCE | 2014年 / 45卷 / 01期
关键词：
OPTICAL-ABSORPTION; CU2+ IONS; EPR-SPECTRA; CITRATE; VO2+; TETRAHYDRATE; MONOHYDRATE; SACCHARIN; LIGAND; ESR;
D O I：
10.1007/s00723-013-0493-3
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
The present study is mainly related to finding out spin-Hamiltonian parameters of Cu2+-doped potassium metabisulfite [K2S2O5] single crystals using electron paramagnetic resonance (EPR) technique which has been applied in the temperature range from 297 to 113 K for single and powder crystals of the title compound. The existence of two complexes and two Cu2+ sites for each complex was concluded from the angular variation of the EPR spectra. Having constructed the g and the hyperfine tensors, the spin-Hamiltonian parameters have been obtained for these two complexes. Using these parameters, the covalency parameter (alpha (2)), mixing coefficients (alpha and beta) and Fermi contact term (K) have been calculated.
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页码：1 / 8
页数：8
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