| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Analysis of Ground-State Zero-Field Splitting for Mn2+ in ZnNbOF5⋅6(H2O) and CoNbOF5⋅6(H2O) |
| LI Ju-Fen1, KUANG Xiao-Yu2,3**
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1School of Science, Southwest Petroleum University, Chengdu 610065
2Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065
3International Centre for Materials Physics, Chinese Academy of Sciences, Shenyang 110016
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| Cite this article: |
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LI Ju-Fen, KUANG Xiao-Yu 2011 Chin. Phys. Lett. 28 067105 |
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Abstract The electron paramagnetic resonance spectra of trigonal Mn2+ centers in ZnNbOF5⋅6(H2O) and CoNbOF5⋅6(H2O) crystals are studied on the basis of the complete energy matrices for a d5 configuration ion in a trigonal ligand field. It is demonstrated that the local lattice structure around a trigonal Mn2+ center has an elongation distortion along the crystalline c3 axis, and when Mn2+ is doped in the ZnNbOF5⋅6(H2O) and CoNbOF5⋅6(H2O) crystals, there is a similar local distortion. From the EPR calculation, the local lattice structure parameters for trigonal Mn2+ centers in ZnNbOF5⋅6(H2O) and CoNbOF5⋅6(H2O) are determined.
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| Keywords:
71.70.Gm
75.30.Et
71.70.Ch
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Received: 08 July 2010
Published: 29 May 2011
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| PACS: |
71.70.Gm
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(Exchange interactions)
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75.30.Et
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(Exchange and superexchange interactions)
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71.70.Ch
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(Crystal and ligand fields)
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