Please use this identifier to cite or link to this item: http://hdl.handle.net/1783.1/6136

Pseudogap Mediated by Quantum-Size Effects in Lead Islands

Authors Wang, Kedong
Zhang, Xieqiu
Loy, M. M. T.
Chiang, T. -C.
Xiao, Xudong
Issue Date 2009
Source Physical Review Letters, v. 102, (7), 2009, FEB 20, article number 076801
Summary Scanning tunneling spectroscopy measurements of Pb islands on Si(111) at high energy resolution reveal a novel pseudogap, or a pseudopeak in special cases, around the Fermi level in addition to the usual quantum well states. These gap or peak features persist to temperatures as high as similar to 80 K and are uniquely related to the quantum well nanostructure of the Pb islands. A systematic analysis indicates that electron-phonon scattering is responsible for the observed electronic structure.
Subjects
ISSN 0031-9007
Rights Physical Review Letters © Copyright 2009 American Physical Society. The Journal's web site is located at http://prl.aps.org
Language English
Format Article
Access View full-text via DOI
View full-text via Web of Science
View full-text via Scopus
Find@HKUST
Files in this item:
File Description Size Format
pseudogap.pdf 912.24 kB Adobe PDF