The Anisotropy of Elastic Properties in Orthorhombic Modification of AgInS2 from X-Ray Thermal Diffuse Scattering Data

Abstract

Measurements of the diffuse X-ray scattering intensity are performed from the (100), (010) and (001) planes in the AgInS 2 ternary compound with the orthorhombic wurtzite-type structure. From these data all nine elastic moduli C ik as well as the phase velocities of the elastic waves along different crystallographic directions for longitudinal and transverse polarizations are found. A comparative analysis of both the anisotropy of the thermal diffuse scattering intensity distribution and the character of the elastic anisotropy for the ternary AgInS 2 compound with orthorhombic structure and the binary CdS and ZnS analogs with wurtzite structure is carried out.rovedeny Cksperimentl5nye issledovni¾ rspredeleni¾ intensivnosti diffuznogo rsse¾ni¾ rentgenovskih luqej ot ploskostej @IHHAD @HIHA i @HHIA v soedinenii AgInS 2 s romiqeskoj vÏritoEpodonoj strukturojF sz nliz intensivnosti odnofononnogo diffuznogo rsse¾ni¾ opredeleny uprugie konstnty i skorosti rsprostrneni¾ upruE gih voln vdol5 rzliqnyh nprvlenij v kristlleF roveden srvnitel5noj nliz niE zotropii rspredeleni¾ intensivnosti diffuznogo rsse¾ni¾D tkwe hrkter upruE goj nizotropii v trojnom soedinenii AgInS 2 s ortoromiqeskoj strukturoj i v inrnyh nlogh Cds i ZnS so strukturoj vÏritF