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 4–300K temperature range. At room temperature the EPR spectrum consisted of two widely differing components: a narrow (∼10mT) line centered at gna=1.967 and an intense, almost Lorentzian broad (∼100mT) 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 50K 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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