Abstract:We report a systematic study of the structural and magnetic properties of frustrated compounds of Ga x Mn (3−x) O 4 (1.2 ≤ x ≤ 1.6) prepared by solid-state reaction. Using Rietveld refinement of X-ray diffraction patterns and O'Neill-Navrotsky model, we demonstrate that the system Ga x Mn (3−x) O 4 (1.2 ≤ x ≤ 1.6) is an inverse spinel with low inversion parameter, in which Ga 3+ replaces Mn 3+ cations located in B-sites. The inverse magnetic susceptibility, the shape of ZFC/FC magnetization curves at low tempe… Show more
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