Self-consistent interatomic interaction in quantum crystals

Piotr Sloma; Cecylia Malinowska-Adamska; Janusz Tomaszewski

doi:10.1117/12.342985

24 March 1999 Self-consistent interatomic interaction in quantum crystals

Piotr Sloma, Cecylia Malinowska-Adamska, Janusz Tomaszewski

Proceedings Volume 3724, International Conference on Solid State Crystals '98: Single Crystal Growth, Characterization, and Applications; (1999) https://doi.org/10.1117/12.342985
Event: International Conference on Solid State Crystals '98, 1998, Zakopane, Poland

Abstract

The name `quantum crystals' is used for solids with large zero-point energy. The solidified rare gases like solid helium and neon are the most conspicuous examples of this class of materials. In this paper the results of theoretical investigations of interatomic interactions and physical properties of quantum crystals within the self-consistent phonon theory are presented. The description of the interatomic forces and the theory connecting them with the dynamical and thermodynamical properties of solid ⁴He and Ne are given in terms of the (exp,m) Buckingham, (n,m) Lennard-Jones and the (exp,exp) Morse pair potentials. Calculating the dynamics of crystal lattice and the thermodynamical properties of h.c.p. ⁴He and f.c.c. Ne tests relative merits of these potential functions and allows to compare them with the experimental data.

Citation Download Citation

Piotr Sloma, Cecylia Malinowska-Adamska, and Janusz Tomaszewski "Self-consistent interatomic interaction in quantum crystals", Proc. SPIE 3724, International Conference on Solid State Crystals '98: Single Crystal Growth, Characterization, and Applications, (24 March 1999); https://doi.org/10.1117/12.342985

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