| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Electron Paramagnetic Resonance and Optical Absorption of VO2+ Doped Ammonium Selenate Single Crystals |
| Ram Kripal1**, Ashutosh Kumar Shukla
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1Department of Physics, University of Allahabad, Allahabad 211002, India
2Department of Physics, Ewing Christian College, Allahabad 211003, India
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| Cite this article: |
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Ram Kripal, Ashutosh Kumar Shukla 2011 Chin. Phys. Lett. 28 037601 |
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Abstract An electron paramagnetic resonance study of vanadyl ions doped in ammonium selenate single crystals is carried out at room temperature. It is found that the VO2+ ion takes up an interstitial site. The spin Hamiltonian parameters obtained from the crystal rotations are g|| =1.9576 ±0.0002, g⊥=1.9889±0.0002, A||=203±2 G, A⊥=78± 2 G. An optical absorption study is also carried out to evaluate various bonding parameters. On the basis of these parameters the nature of bonding in the complex is discussed.
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| Keywords:
76.30.Da
76.30.Fc
71.70.Ch
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Received: 01 August 2010
Published: 28 February 2011
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| PACS: |
76.30.Da
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(Ions and impurities: general)
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76.30.Fc
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(Iron group (3d) ions and impurities (Ti-Cu))
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71.70.Ch
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(Crystal and ligand fields)
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