Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1484490 | Journal of Non-Crystalline Solids | 2008 | 6 Pages |
Abstract
Powder samples of CrSbVO6 were synthesized from a mixture of appropriate oxides by the solid state reaction technique and investigated by the electron paramagnetic resonance (EPR) in the 4-300 K temperature range. At room temperature the EPR spectrum consisted of two widely differing components: a narrow (â¼10 mT) line centered at gna = 1.967 and an intense, almost Lorentzian broad (â¼100 mT) line at gbr = 1.975. The EPR spectral parameters (linewidth, g-factor, amplitude, integrated intensity) of both components displayed a marked thermal dependence. The temperature dependence of the broad component showed a very interesting behavior - its amplitude increased on cooling from room temperature, reaching a maximum at 50 K and decreased sharply on further cooling. The narrow line in the EPR spectrum of CrSbVO6 was attributed to strongly interacting V4+ and Cr3+ monomers and Cr3+-Cr3+ pairs, while the broad line was due to the V4+-V4+ dimers and spin clusters involving Cr3+ and V4+ ions.
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Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
J. Typek, N. Guskos, E. Filipek,