| Abstract: | Measurements of the diffuse X-ray scattering intensity are performed from the (100) and (001) planes in the AgGaS2 compound with tetragonal chalcopyrite-type structure. From these data the phase velocities of elastic waves along the principal symmetry directions for longitudinal and transverse polarizations as well as all six elastic moduli Cik are found. The comparative analysis of both the anisotropy of the thermal diffuse scattering intensity distribution and the character of the elastic anisotropy for the ternary compound AgGaS2 with the chalcopyrite structure and the binary analogs CdS and ZnS with the sphalerite structure is carried out. |
