Evidence of Collective Charge Behavior in the Insulating State of Ultrathin Films of Superconducting Metals
Preprint
- 20 August 2001
Abstract
Nonlinear I-V characteristics have been observed in insulating quench-condensed films which are locally superconducting. We suggest an interpretation in terms of the enhancement of conduction by the depinning of a Cooper pair charge density wave, Cooper pair crystal, or Cooper pair glass that may characterize the insulating regime of locally superconducting films. We propose that this is a more likely description than the Coulomb blockade or charge-anticharge unbinding phenomena.Keywords
All Related Versions
- Version 1, 2001-08-20, ArXiv
- Published version: Physical Review Letters, 88 (3), 037004.
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