ESR evidence for the existence of rutile-type,nonstoichiometric vanadium antimonate |
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Authors: | CS Sunandana |
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Affiliation: | School of Physics, University of Hyderabad Hyderabad 500134, India |
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Abstract: | A nonstoichiometric vanadium antimonate has been synthesized from a high temperature solid state reaction of V2O5 and Sb2O3. Powder-X-ray diffraction data of this phase could be indexed on a tetragonal basis with , . The phase exhibits a well resolved hyperfine ESR spectrum at 298 K due to V(4+)(3d′) ions interacting with , thus establishing its identity as a rutile type phase postulated earlier. The ESR parameters are , g⊥ = 1.984±0.002, , A⊥ = 75±3G. Present results are discussed in relation to ESR of V(4+) in other rutile-type hosts. |
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