Observation of Quantum dissipation in the vortex state of a highly disordered superconducting thin film

D. Ephron, Ali Yazdani, A. Kapitulnik, M. R. Beasley

Research output: Contribution to journalArticle

162 Scopus citations

Abstract

We present transport measurements on a highly disordered, amorphous thin film superconductor that shows a crossover from activated to temperature independent resistance at low temperatures in the presence of a magnetic field. We interpret the data in terms of quantum tunneling of vortices, and find that within this interpretation the tunneling objects are not single vortices but rather dislocations and antidislocations of the vortex lattice, which nucleate quantum mechanically as unbound pairs. We note, however, that other interpretations of the data may be possible.

Original languageEnglish (US)
Pages (from-to)1529-1532
Number of pages4
JournalPhysical Review Letters
Volume76
Issue number9
DOIs
StatePublished - Jan 1 1996
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Observation of Quantum dissipation in the vortex state of a highly disordered superconducting thin film'. Together they form a unique fingerprint.

  • Cite this