Image-potential states at surfaces and in ...
Document type :
Compte-rendu et recension critique d'ouvrage
DOI :
Title :
Image-potential states at surfaces and in tunnel junctions
Author(s) :
Oleksy, Cz. [Auteur]
University of Wrocław [Poland] [UWr]
Akjouj, Abdellatif [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Physique - IEMN [PHYSIQUE - IEMN]
Dobrzynski, Leonard [Auteur]
Université Lille Nord (France)
Physique - IEMN [PHYSIQUE - IEMN]
University of Wrocław [Poland] [UWr]
Akjouj, Abdellatif [Auteur]

Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Physique - IEMN [PHYSIQUE - IEMN]
Dobrzynski, Leonard [Auteur]

Université Lille Nord (France)
Physique - IEMN [PHYSIQUE - IEMN]
Journal title :
Physical Review B: Condensed Matter (1978-1997)
Pages :
1163-1167
Publisher :
American Physical Society
Publication date :
1990
ISSN :
0163-1829
HAL domain(s) :
Physique [physics]/Matière Condensée [cond-mat]
English abstract : [en]
We report a theoretical study of image-potential states at a (001) surface of Ag, done with the help of a simple tight-binding model having an electronic band of finite width. The wave function associated with these states ...
Show more >We report a theoretical study of image-potential states at a (001) surface of Ag, done with the help of a simple tight-binding model having an electronic band of finite width. The wave function associated with these states is calculated at the center of the two-dimensional (2D) Brillouin zone. The energy dispersion of these states is studied along symmetry directions of this 2D Brillouin zone and the deviation of this dispersion from its usual parabolic form is discussed. Inside a tunnel junction Ag(001)/vacuum/Ag(001) the energies of these image-potential states were shown to depend on the width of the vacuum slab. Finally, we report how the energies of these image-potential states vary when a voltage is applied to this junction.Show less >
Show more >We report a theoretical study of image-potential states at a (001) surface of Ag, done with the help of a simple tight-binding model having an electronic band of finite width. The wave function associated with these states is calculated at the center of the two-dimensional (2D) Brillouin zone. The energy dispersion of these states is studied along symmetry directions of this 2D Brillouin zone and the deviation of this dispersion from its usual parabolic form is discussed. Inside a tunnel junction Ag(001)/vacuum/Ag(001) the energies of these image-potential states were shown to depend on the width of the vacuum slab. Finally, we report how the energies of these image-potential states vary when a voltage is applied to this junction.Show less >
Language :
Anglais
Popular science :
Non
Source :
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