Luminescence from metallic quantum wells in a scanning tunneling microscope - art. no. 176803

Authors
Hoffmann, G Kliewer, J Berndt, R
Citation
G. Hoffmann et al., Luminescence from metallic quantum wells in a scanning tunneling microscope - art. no. 176803, PHYS REV L, 8717(17), 2001, pp. 6803
Citations number
25
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
8717
Issue
17
Year of publication
2001
Database
ISI
SICI code
0031-9007(20011022)8717:17<6803:LFMQWI>2.0.ZU;2-Z
Abstract
The tunneling current of a scanning tunneling microscope is reported to cau se light emission from the metallic quantum well system Na on Cu(111). Opti cal spectra along with tunneling spectroscopy show that one component of th e emission is due to interband transitions between quantum well states of t he Na layer. The other component is similar to plasmon-mediated emission ob served previously from noble metals. The emission is a unique local probe o f the electronic structure of this quantum well system.