Image-potential states at surfaces and in tunnel junctions

Oleksy, Cz.; Akjouj, Abdellatif; Dobrzynski, Leonard

Type de document :

Compte-rendu et recension critique d'ouvrage

DOI :

10.1103/PhysRevB.42.1163

Titre :

Image-potential states at surfaces and in tunnel junctions

Auteur(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]

Titre de la revue :

Physical Review B: Condensed Matter (1978-1997)

Pagination :

1163-1167

Éditeur :

American Physical Society

Date de publication :

1990

ISSN :

0163-1829

Discipline(s) HAL :

Physique [physics]/Matière Condensée [cond-mat]

Résumé en anglais : [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 ...
Lire la suite >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.Lire moins >

Langue :

Anglais

Vulgarisation :

Non

Collections :

Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL

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