SUPERCONDUCTING PHONON STRUCTURE IN THE TRANSITION FROM TUNNELING TO CONTACT REGIME

Authors
RODRIGO JG AGRAIT N SIRVENT C VIEIRA S
Citation
Jg. Rodrigo et al., SUPERCONDUCTING PHONON STRUCTURE IN THE TRANSITION FROM TUNNELING TO CONTACT REGIME, Physical review. B, Condensed matter, 50(10), 1994, pp. 7177-7179
Citations number
11
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
50
Issue
10
Year of publication
1994
Pages
7177 - 7179
Database
ISI
SICI code
0163-1829(1994)50:10<7177:SPSITT>2.0.ZU;2-A
Abstract
We study the variation of the phonon structure in the conductance curv es of superconducting variable-barrier junctions formed using a scanni ng tunneling microscope. The observed vanishing of this structure as t he tunneling barrier decreases is explained as a result of the mixing of electronic states in the Andreev reflection process, whose importan ce increases as the tunneling barrier decreases.