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Title: Electron Confinement in Surface States on a Stepped Gold Surface Revealed by Angle-Resolved Photoemission

Abstract

STM images show that vicinal Au(788) surfaces are made up of a uniform array of (111)-oriented terraces of similar width ({approx}3.8 nm) . This uniformity makes it possible to study the electronic structure of the resulting step superlattice by angle-resolved photoemission. We show that for this terrace array the surface state appears to be broken up into one-dimensional quantum-well levels, indicating total electron confinement within the terraces. The angular resolution allows the probability density of the terrace quantum well state to be mapped in reciprocal space, complementing nicely the wave function measured in real space by STM.

Authors:
; ; ; ; ; ;
Publication Date:
Sponsoring Org.:
(US)
OSTI Identifier:
40277552
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 87; Journal Issue: 10; Other Information: DOI: 10.1103/PhysRevLett.87.107601; Othernumber: PRLTAO000087000010107601000001; 005136PRL; PBD: 3 Sep 2001; Journal ID: ISSN 0031-9007
Publisher:
The American Physical Society
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CONFINEMENT; ELECTRONIC STRUCTURE; ELECTRONS; GOLD; PHOTOEMISSION; PROBABILITY; RESOLUTION; SUPERLATTICES; WAVE FUNCTIONS

Citation Formats

Mugarza, A, Mascaraque, A, Perez-Dieste, V, Repain, V, Rousset, S, Garcia de Abajo, F J, and Ortega, J E. Electron Confinement in Surface States on a Stepped Gold Surface Revealed by Angle-Resolved Photoemission. United States: N. p., 2001. Web. doi:10.1103/PhysRevLett.87.107601.
Mugarza, A, Mascaraque, A, Perez-Dieste, V, Repain, V, Rousset, S, Garcia de Abajo, F J, & Ortega, J E. Electron Confinement in Surface States on a Stepped Gold Surface Revealed by Angle-Resolved Photoemission. United States. doi:10.1103/PhysRevLett.87.107601.
Mugarza, A, Mascaraque, A, Perez-Dieste, V, Repain, V, Rousset, S, Garcia de Abajo, F J, and Ortega, J E. Mon . "Electron Confinement in Surface States on a Stepped Gold Surface Revealed by Angle-Resolved Photoemission". United States. doi:10.1103/PhysRevLett.87.107601.
@article{osti_40277552,
title = {Electron Confinement in Surface States on a Stepped Gold Surface Revealed by Angle-Resolved Photoemission},
author = {Mugarza, A and Mascaraque, A and Perez-Dieste, V and Repain, V and Rousset, S and Garcia de Abajo, F J and Ortega, J E},
abstractNote = {STM images show that vicinal Au(788) surfaces are made up of a uniform array of (111)-oriented terraces of similar width ({approx}3.8 nm) . This uniformity makes it possible to study the electronic structure of the resulting step superlattice by angle-resolved photoemission. We show that for this terrace array the surface state appears to be broken up into one-dimensional quantum-well levels, indicating total electron confinement within the terraces. The angular resolution allows the probability density of the terrace quantum well state to be mapped in reciprocal space, complementing nicely the wave function measured in real space by STM.},
doi = {10.1103/PhysRevLett.87.107601},
journal = {Physical Review Letters},
issn = {0031-9007},
number = 10,
volume = 87,
place = {United States},
year = {2001},
month = {9}
}