Open AccessУпругие свойства нанокристаллических кубических сульфидов Ag-=SUB=-2-=/SUB=-S и ZnS
Author(s) -
С. И. Садовников
Publication year - 2021
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2021.09.51278.067
Subject(s) - sphalerite , silver sulfide , zinc sulfide , materials science , anisotropy , crystallography , zinc selenide , zinc , chemistry , metallurgy , physics , optics , optoelectronics , pyrite
The structure of Ag2S/ZnS heteronanostructures is considered taking into account the anisotropy of the elastic properties of Ag2S and ZnS sulfides. It is shown that a large amount of cubic zinc sulfide stabilizes the cubic structure of beta-Ag2S argentite at 300 K during the deposition of Ag2S/ZnS heteronanostructures from colloidal solutions. The elastic stiffness constants c11, c12, and c44 of cubic argentite beta-Ag2S and sphalerite ZnS are estimated at a temperature of 300 K. Physically possible variants of the arrangement of silver atoms at fixed crystallographic positions of cubic argentite are determined. It is shown that the energetically most favorable is the formation of beta-Ag2S heterostructures, in which the interface is formed by the (hk0) plane of ZnS sphalerite and the (hk 0.5) plane of beta-Ag2S argentite. Calculation of the universal criterion for the anisotropy of the elastic properties of cubic argentite beta-Ag2S and sphalerite ZnS showed that the studied silver and zinc sulfides are elastically anisotropic.