Affordable Access

Publisher Website

Antibonding surface state band of the Ge(111)2 × 1 surface

Authors
Journal
Surface Science
0039-6028
Publisher
Elsevier
Publication Date
Volume
218
Issue
1
Identifiers
DOI: 10.1016/0039-6028(89)90630-4

Abstract

Abstract The unoccupied surface electronic structure of cleaved Ge(111)2 × 1 surfaces has been investigated with k-resolved inverse photoemission spectroscopy. A prominent empty surface state is detected, which exhibits a large dispersion in good agreement with the antibonding band calculated for the π-bonded chain model. Identical dispersions are obtained for undoped and highly n-doped crystals, which together with photoemission results indicate that no band gap narrowing or shift of the energy levels occurs for highly n-doped crystals as suggested recently from a theoretical model.

There are no comments yet on this publication. Be the first to share your thoughts.