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|Title: ||Pseudogap mediated by quantum-size effects in lead islands|
|Authors: ||Wang, Kedong|
Loy, Michael M.
Chiang, T. -C.
|Keywords: ||Scanning tunneling spectroscopy|
|Issue Date: ||19-Feb-2009 |
|Citation: ||Physical review letters, v. 102, 076801, 2009|
|Abstract: ||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 ~80 K and are uniquely related to the quantum well nanostructure of the Pb islands. A systematic analysis indicates that electronphonon scattering is responsible for the observed electronic structure.|
|Rights: ||Physical Review Letters © Copyright 2009 American Physical Society. The Journal's web site is located at http://prl.aps.org|
|Appears in Collections:||PHYS Journal/Magazine Articles|
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