Elasticity of 3D and 2D XC (X = Si, Ge, Sn) compounds: Keating and Harrison models
نویسندگان
چکیده
For the bulk and monolayer IV group carbides in scope of Keating and/or Harrison models analytical expressions are obtained for second order elastic constants c ij , sound velocities v, third ijk pressure dependencies Grneisen constant, thermal expansion coefficient temperature dependence moduli. It is shown that row SiC-GeC-SnC values all considered characteristics decrease while increases. All model estimations compared with experimental data calculating results other authors. Keywords: force constants, velocities, anharmonic characteristics.
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ژورنال
عنوان ژورنال: Fizika tverdogo tela
سال: 2022
ISSN: ['0367-3294', '1726-7498']
DOI: https://doi.org/10.21883/pss.2022.06.53822.300