Interatomic interaction and physical properties of quantum crystals in the self-consistent phonon theory

Cecylia Malinowska-Adamska

doi:10.1117/12.342970

24 March 1999 Interatomic interaction and physical properties of quantum crystals in the self-consistent phonon theory

Cecylia Malinowska-Adamska

Proceedings Volume 3724, International Conference on Solid State Crystals '98: Single Crystal Growth, Characterization, and Applications; (1999) https://doi.org/10.1117/12.342970
Event: International Conference on Solid State Crystals '98, 1998, Zakopane, Poland

Abstract

Every complete lattice theory of solid state consists of two basic elements, namely the description of the interatomic forces and the theory connecting them with the dynamical and thermodynamical properties of the crystal. In the present paper we have discussed the application of the self- consistent phonon theory formulated independently by various authors with the help of the modern techniques of many-body method to the quantum crystals. The results of theoretical investigations of the high-temperature and pressure properties of solid b.c.c. ³He, h.c.p. ⁴He and f.c.c. ²⁰Ne in terms of the interatomic potential energy curves proposed by Beck, Murrel-Shaw, Morse, Buckingham and Lennard-Jones are given and compared with available experimental data. Extensive comparison of theoretical and experimental results allows us to discuss the suitability the above self-consistent potential energy functions as real interatomic potential modes in solid helium and neon.

Citation Download Citation

Cecylia Malinowska-Adamska "Interatomic interaction and physical properties of quantum crystals in the self-consistent phonon theory", Proc. SPIE 3724, International Conference on Solid State Crystals '98: Single Crystal Growth, Characterization, and Applications, (24 March 1999); https://doi.org/10.1117/12.342970

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