ELECTRON PARAMAGNETIC RESONANCE OF THE TRIVALENT Cr<sup>3+</sup> ION IN SINGLE CRYSTALS OF LITHIUM-GALLIUM SPINEL Li<sub>0.5</sub>Ga<sub>2.5</sub>O<sub>4</sub>
Structural and magnetic inequivalency of the Cr<sup>3+</sup> ions in single crystals of lithium-gallium spinel Li<sub>0.5</sub>Ga<sub>2.5</sub>O<sub>4</sub> are studied by electron paramagnetic resonance (EPR). Ion distribution over the sublattices and structurally inequivalent sites of a unit cell of single-crystal Li<sub>0.5</sub>Ga<sub>2.5</sub>O<sub>4</sub> is demonstrated.