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Proceedings Paper

Self-consistent interatomic interaction in quantum crystals
Author(s): Piotr Sloma; Cecylia Malinowska-Adamska; Janusz Tomaszewski
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Paper 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.

Paper Details

Date Published: 24 March 1999
PDF: 6 pages
Proc. SPIE 3724, International Conference on Solid State Crystals '98: Single Crystal Growth, Characterization, and Applications, (24 March 1999); doi: 10.1117/12.342985
Show Author Affiliations
Piotr Sloma, Technical Univ. of Lodz (Poland)
Cecylia Malinowska-Adamska, Technical Univ. of Lodz (Poland)
Janusz Tomaszewski, Technical Univ. of Lodz (Poland)


Published in SPIE Proceedings Vol. 3724:
International Conference on Solid State Crystals '98: Single Crystal Growth, Characterization, and Applications
Andrzej Majchrowski; Jerzy Zielinski, Editor(s)

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