The effects of non-stoichiometry on the magnetic properties of cadmium chromium chalcogenide spinels

Distribution of Metal Ions and Magnetic Properties in Spinel System Zn(1−x)Ga2x/3Cr2Se4

“…A general feature of the chromium chalcogenide spinels reported in the literature (e.g., (5,6)) is that the measured magnetic saturation moments are signi"cantly smaller than the theoretical value 6 /formula unit.…”

Crystal structure and magnetic property correlation in Cd1−xMxCrBehera1, Bhobe2 2015Journal of Magnetism and Magnetic Materials13120View full textAdd to dashboardCite

“…We have therefore restricted to small percentage (up to 10%) of substitutions as we aimed at maintaining the Fd3m symmetry of CdCr 2 Se 4 whilst change in stoichiometry. The substitutions (M ¼In, Sb, Sn) bring about two effects: local lattice distortion, and, change in the electronic charge [27,29]. In tetrahedral environment the ionic radii of Sb, In and Sn decreases systematically as 0.76 0.62 0.55 Å > Å > Å, with only Sbions matching in size with the Cd (0.78 Å) ions.…”

Electronic Band Structure of Cadmium Chromium Chalcogenide Spinels: CdCr2S4 and CdCr2Se4

“…Thus, the calculated magnetic moment of CdCr S is &6.3 per formula unit, close to the experimental value of 5.7 per formula unit (22). The calculated magnetic moment of CdCr Se is &6.2 per formula unit compared to the experimental value of 5.6 /formula unit (9).…”