Abstract
Electron paramagnetic resonance of the Gd3+ ion in a ferroelastic BiVO4 single crystal with a single domain, grown by the Czochralski method, has been investigated at room temperature using a Q-band spectrometer. The rotation patterns of the resonance fields measured in the crystallographic planes are analyzed using a monoclinic spin Hamiltonian. The principal Z-axis of the second-order zero-field splitting tensorD is found to be along the crystallographicb-axis. Spin Hamiltonian parameters together with the principal axes ofg andD tensors in the monoclinic plane show that the local site symmetry of Gd3+ ion in BiVO4 crystal is monoclinic and that the Gd3+ ion substitutes for Bi3+ ion.
Published Version
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