Phase Relation of Nonstoichiometric Chromium Sulfide CrS_x in the Range of 1.200≲x≲1.480

概要

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Composition analysis and vapor pressure measurement on the chromium sulfides prepared under the controlled pressures and temperatures indicated that the equilibrium sulfur pressure for the CrS_x increases monotoncally with the increasing sulfur content in both ranges of 1.200<x<1.390 and 1.420<x<1.480 and is kept constant in the range of 1.390<x<1.420 corresponding to the coexistence of two crystalline phases. The existence of two crystalline phases with 1.420<x<1.463 and 1.463<x<1.480 was estimated from the abrupt change in the heat of vaporization of sulfur in the CrS_x at x≈1.463. The hexagonal unit cell dimension of the superstructure for x=1.200 is expressed in terms of √<3> a and 2c. Fox x=1.333, monoclinic deformation is observed. The magnetic susceptibility of single crystals with the various controlled compositions was measured.
社団法人日本物理学会の論文
1971-11-05