Competition between zero bias anomaly and proximity effect in disordered systems

Authors
Oreg, Y Brouwer, PW Simons, BD Altland, A
Citation
Y. Oreg et al., Competition between zero bias anomaly and proximity effect in disordered systems, PHYS REV L, 82(6), 1999, pp. 1269-1272
Citations number
23
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
82
Issue
6
Year of publication
1999
Pages
1269 - 1272
Database
ISI
SICI code
0031-9007(19990208)82:6<1269:CBZBAA>2.0.ZU;2-7
Abstract
We investigate the suppression of the proximity effect in mesoscopic normal -metal - superconductor systems induced by Coulomb interaction. We identify and elucidate the mechanism by which disorder leads to an amplification of this effect. In particular, for strong enough disorder, the proximity effe ct is shown to vanish. An expression for the tunneling density of states is obtained and experimental applications are discussed. [S0031-9007(98)08315 -X].