EPR and optical absorption studies on VO2+ ions in calcium fumarate trihydrate single crystals
IR@NPL: CSIR-National Physical Laboratory, New Delhi
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| Title |
EPR and optical absorption studies on VO2+ ions in calcium fumarate trihydrate single crystals
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| Creator |
Kripal, Ram
Mishra, Indrajeet Gupta, S. K. Arora, Manju |
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| Subject |
Chemistry
Physics |
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| Description |
Electron Paramagnetic Resonance (EPR) studies of VO2+ ions in calcium fumarate trihydrate single crystals have been done at room temperature. EPR analysis indicates the presence of two magnetically inequivalent VO2+ sites. For the two sites the spin Hamiltonian parameters are, Site I: gx = 1.9689,gy = 2.0087,gz = 1.9344, Ax = 73,Ay = 88,Az = 202; Site II: gx = 1.9675,gy = 2.0100,gz = 1.9346,Ax = 75,Ay = 90, Az = 206 (×10−4) cm−1. The optical absorption study is also carried out at room temperature. By correlating EPR and optical data the nature of bonding in the crystal is discussed. The three-line superhyperfine structure has been attributed to two protons.
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| Publisher |
Elsevier
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| Date |
2009-11-17
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://npl.csircentral.net/138/1/112.pdf
Kripal, Ram and Mishra, Indrajeet and Gupta, S. K. and Arora, Manju (2009) EPR and optical absorption studies on VO2+ ions in calcium fumarate trihydrate single crystals. Chemical Physics Letters, 484 (4-6). pp. 200-206. ISSN 0009-2614 |
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| Relation |
http://dx.doi.org/10.1016/j.cplett.2009.11.038
http://npl.csircentral.net/138/ |
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