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Investigations of the spin-Hamiltonian parameters, optical absorption bands, and local structure for the tetragonal Cu2+ center in Cu2+ -doped ZnCdO nanopowder
W. L. Feng; K. Wang; F. Zhao; J. Y. Xue
2014
Source PublicationJournal of Physics and Chemistry of Solids
ISSN0022-3697
Volume75Issue:6Pages:787-789
AbstractThe spin-Hamiltonian (or EPR) parameters of tetragonal Cu2+ octahedral centers in ZnCdO nanopowders are calculated from the high-order perturbation formulas based on the cluster approach. In these formulas, the contributions to spin-Hamiltonian parameters due to the admixture between the d orbitals of d(n) ion and the p orbitals of ligand ions via covalence effect are considered. The crystal field parameters are calculated from the superposition model and so the optical absorption bands (related to the crystal field energy levels) and local structure of Cu2+ octahedral centers in ZnCdO nanopowder are also studied. The calculated spin-Hamiltonian parameters and optical absorption bands are in reasonable agreement with the experimental values. The tetragonal elongation AR ( =R-broken vertical bar broken vertical bar-R-perpendicular to) of Cu2+ octahedron in ZnCdO nanopowder due to Jahn-Teller effect is acquired from the calculations. The results are discussed. (C) 2014 Elsevier Ltd. All rights reserved.
description.department[feng, wen-lin ; wang, ke ; zhao, fen ; xue, ji-yuan] chongqing univ technol, dept appl phys, chongqing 400054, peoples r china. [feng, wen-lin] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china. [feng, wen-lin ; xue, ji-yuan] chongqing key lab time grating sensing & adv test, chongqing 400054, peoples r china. ; feng, wl (reprint author), chongqing univ technol, dept appl phys, chongqing 400054, peoples r china. ; wenlinfeng@126.com
KeywordMagnetic Materials Crystal Fields Crystal Structure Electron Paramagnetic Resonance (Epr) Atomic Screening Constants Jahn-teller Distortion Crystal-field Neutron-diffraction Superposition Model Gyromagnetic Factor Au Nanoparticles Single-crystals Scf Functions Ions
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/72844
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
W. L. Feng,K. Wang,F. Zhao,et al. Investigations of the spin-Hamiltonian parameters, optical absorption bands, and local structure for the tetragonal Cu2+ center in Cu2+ -doped ZnCdO nanopowder[J]. Journal of Physics and Chemistry of Solids,2014,75(6):787-789.
APA W. L. Feng,K. Wang,F. Zhao,&J. Y. Xue.(2014).Investigations of the spin-Hamiltonian parameters, optical absorption bands, and local structure for the tetragonal Cu2+ center in Cu2+ -doped ZnCdO nanopowder.Journal of Physics and Chemistry of Solids,75(6),787-789.
MLA W. L. Feng,et al."Investigations of the spin-Hamiltonian parameters, optical absorption bands, and local structure for the tetragonal Cu2+ center in Cu2+ -doped ZnCdO nanopowder".Journal of Physics and Chemistry of Solids 75.6(2014):787-789.
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