Vacancies in quantal Wigner crystals near melting

Authors
Barraza, N Colletti, L Tosi, MP
Citation
N. Barraza et al., Vacancies in quantal Wigner crystals near melting, SOL ST COMM, 112(5), 1999, pp. 261-264
Citations number
19
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SOLID STATE COMMUNICATIONS
ISSN journal
00381098 → ACNP
Volume
112
Issue
5
Year of publication
1999
Pages
261 - 264
Database
ISI
SICI code
0038-1098(1999)112:5<261:VIQWCN>2.0.ZU;2-I
Abstract
We estimate the formation energy of lattice vacancies in quantal Wigner cry stals of charged particles near their melting point at zero temperature, in terms of the crystalline Lindemann parameter and of the static dielectric function of the fluid phase near freezing. For both two-dimensional (2D) an d three-dimensional (3D) crystals of electrons, our results suggest the pre sence of vacancies in the ground state at the melting density. (C) 1999 Els evier Science Ltd. All rights reserved.