| Autor: | I. M. Yurkin, T. N. Mel'nichenko, Ya. P. Kutsenko, T. D. Mel'nichenko, V. I. Fedelesh |
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| Rok vydání: | 2001 |
| Předmět: |
Condensed matter physics
Chalcogenide Anharmonicity Thermodynamics Soft modes Condensed Matter Physics Condensed Matter::Disordered Systems and Neural Networks Thermal expansion Poisson's ratio chemistry.chemical_compound symbols.namesake Lattice constant chemistry Volume (thermodynamics) Materials Chemistry Ceramics and Composites symbols Glass transition |
| Zdroj: | Glass Physics and Chemistry. 27:298-305 |
| ISSN: | 1087-6596 |
| DOI: | 10.1023/a:1011308008494 |
| Popis: | In the framework of the free volume concept, the dependences of α g T gand ΔαT gon μ and γ are considered and the interrelation between the fraction of the fluctuation free volume f g, Poisson ratio μ, and Gruneisen lattice parameter γ for chalcogenide, oxogenide, and oxohalide glasses is discussed. The fluctuation free volume model and the model of soft atomic configurations are compared in terms of anharmonicity of the glasses under investigation. |
| Databáze: | OpenAIRE |
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