ELASTIC CHARACTERISTICS OF LAMINATED GALLIUM AND INDIUM CHALCOGENIDES

摘要

Laminated gallium and indium chalcogenides are promising materials for the construction of mechanoelectrooptical sensors operating at high temperatures and pressures in aggressive media. The high-temperature annealing of these crystals in different atmospheres distorts their lattice, induces thermal stresses, and affects the elastic characteristics [1-5]. In what follows, we establish the exact values of the lattice constants of gallium and indium monochalcogenides in a broad temperature range and analyze the behavior of their elastic characteristics depending on the chemical composition and temperature.