抄録
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 CrSx increases monotonically 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 CrSx at x≈1.463. The hexagonal unit cell dimension of the superstructure for x=1.200 is expressed in terms of \sqrt3 a and 2c. Fox x=1.333, monoclinic deformation is observed. The magnetic susceptibility of single crystals with the various controlled compositions was measured.
