Superconductor-Insulator Transitions in Pure Polycrystalline Nb Thin Films - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Conference Papers Year : 2012

Superconductor-Insulator Transitions in Pure Polycrystalline Nb Thin Films

F. Couëdo
  • Function : Author
O. Crauste
  • Function : Author
  • PersonId : 897041
L. Berge
  • Function : Author
Y. Dolgorouky
  • Function : Author
C. Marrache
  • Function : Author
L. Dumoulin
  • Function : Author

Abstract

We report on a study of the transport properties of Nb thin films. By varying the thickness of the films from 263 angstrom to 25 angstrom, we observed a depression of the superconductivity. Magnetic field was also applied up to 6 T, inducing the disappearance of the superconductivity and the onset of an insulating behavior. The results were compared to those we have already obtained on a highly disordered system, a-NbxSi1-x, to understand whether the same mechanisms for the disappearance of the superconductivity could be at play in pure metallic thin films and in highly disordered systems.

Dates and versions

in2p3-00824879 , version 1 (22-05-2013)

Identifiers

Cite

F. Couëdo, O. Crauste, L. Berge, Y. Dolgorouky, C. Marrache, et al.. Superconductor-Insulator Transitions in Pure Polycrystalline Nb Thin Films. 26th International conference on low temperature physics (LT26), 2011, Beijin, China. pp.022011, ⟨10.1088/1742-6596/400/2/022011⟩. ⟨in2p3-00824879⟩
15 View
0 Download

Altmetric

Share

Gmail Facebook X LinkedIn More