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Scientific paper - Original scientific paper
Delocalized Wigner lattice on a dielectric layer with a metallic substrate: Dynamical properties and phase transitions
Physical review B: Condensed matter and materials physics, 46 (1992), 12; 7821-7828. https://doi.org/10.1103/PhysRevB.46.7821
Lenac, Z.; Šunjić, Marijan

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Lenac, Z. & Šunjić, M. (1992). Delocalized Wigner lattice on a dielectric layer with a metallic substrate: Dynamical properties and phase transitions. Physical review B: Condensed matter and materials physics, 46. (12), 7821-7828. doi: 10.1103/PhysRevB.46.7821

Lenac, Z. and Marijan Šunjić. "Delocalized Wigner lattice on a dielectric layer with a metallic substrate: Dynamical properties and phase transitions." Physical review B: Condensed matter and materials physics, vol. 46, no. 12, 1992, pp. 7821-7828. https://doi.org/10.1103/PhysRevB.46.7821

Lenac, Z. and Marijan Šunjić. "Delocalized Wigner lattice on a dielectric layer with a metallic substrate: Dynamical properties and phase transitions." Physical review B: Condensed matter and materials physics 46, no. 12 (1992): 7821-7828. https://doi.org/10.1103/PhysRevB.46.7821

Lenac, Z. and Šunjić, M. (1992) 'Delocalized Wigner lattice on a dielectric layer with a metallic substrate: Dynamical properties and phase transitions', Physical review B: Condensed matter and materials physics, 46(12), pp. 7821-7828. doi: 10.1103/PhysRevB.46.7821

Lenac Z, Šunjić M. Delocalized Wigner lattice on a dielectric layer with a metallic substrate: Dynamical properties and phase transitions. Physical review B: Condensed matter and materials physics [Internet]. 1992 [cited 2024 November 27];46(12):7821-7828. doi: 10.1103/PhysRevB.46.7821

Z. Lenac and M. Šunjić, "Delocalized Wigner lattice on a dielectric layer with a metallic substrate: Dynamical properties and phase transitions", Physical review B: Condensed matter and materials physics, vol. 46, no. 12, pp. 7821-7828, 1992. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:608874. [Accessed: 27 November 2024]

Metadata
Title (english)Delocalized Wigner lattice on a dielectric layer with a metallic substrate: Dynamical properties and phase transitions
AuthorZ. Lenac
MBZ: 25722
AuthorMarijan Šunjić
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
Properties of a two-dimensional Wigner lattice are analyzed taking into account delocalization of electrons on a thin dielectric layer with a metallic substrate. Electronic screening arising from the metallic substrate enhances the image potential as compared to the semi-infinite dielectric layer, but at the same time lowers the electron-electron interaction. As a result, the electron delocalization becomes a complicated function of the dielectric thickness, dielectric constant, and the electron density. The electron ground-state energy is calculated including the k=0 term of the lattice potential, which has a significant effect at high electron densities. The influence of electron delocalization and of the dielectric substrate on the electron lattice dynamics (phonon spectra, sound velocities) and on the Wigner phase transition is demonstrated. In particular, possible extension of the Kosterlitz-Thouless melting criterion to the quantum regime is discussed.
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePhysical review B: Condensed matter and materials physics
Numberingvol. 46, no. 12, pp. 7821-7828
p-ISSN1098-0121
e-ISSN1550-235X
DOIhttps://doi.org/10.1103/PhysRevB.46.7821
URN:NBNurn:nbn:hr:217:608874
Publication1992
Document URLhttp://link.aps.org/doi/10.1103/PhysRevB.46.7821
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Public noteCopyright (1992) by the American Physical Society.
Created on2019-10-02 19:30:23