Superconducting-insulating transition in two-dimensional a-MoGe thin films

Ali Yazdani, Aharon Kapitulnik

Research output: Contribution to journalArticle

297 Scopus citations

Abstract

A zero-temperature magnetic-field-tuned superconducting-insulating transition is observed in two-dimensional a-MoGe films. The low temperature transport properties of these films show scaling behavior consistent with a transition driven by long-range Coulomb interactions and quantum phase fluctuations in a two-dimensional superconductor. However, contrary to the theoretical predictions we find the critical resistance to be sample dependent. We suggest that the apparent lack of universality in the critical resistance is due to the finite contribution of fermionic excitations to the resistance.

Original languageEnglish (US)
Pages (from-to)3037-3040
Number of pages4
JournalPhysical Review Letters
Volume74
Issue number15
DOIs
StatePublished - Jan 1 1995
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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