Electrical and Magnetic Properties of the Chromium Sulfide with Deviation from Stoichiometric Composition Cr_2S_3

概要

論文の詳細を見る
On assuming the random distribution of Cr^<2+> ions and occupation of intrinsic Cr-vacancy sites, the relation between the equilibrium sulfur pressure P_<S_2> and the deviation from the stoichiometric composition Cr_2S_3 was calculated and was confirmed experimentally. The magnetic susceptibility and the electrical resistivity were measured on single crystals with the controlled deviation, prepared by equilibrating at 1270 K as-grown single crystal with various sulfur pressures. The magnetization of Cr_2S_3 below Neel temperature may originate from the spin alignment with larger component perpendicular to c-axis and depends sensitively on the deviation from the stoichiometric composition. Electrical conductivity was explained by the hopping mechanism between Cr^<3+> and Cr^<2+> ions.
社団法人日本物理学会の論文
1972-05-05