Current-temperature diagram of resistive states in long superconducting niobium filaments

F. R. Ladan, K. Harrabi, M. Rosticher, P. Mathieu, J. P. Maneval*, C. Villard

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


By applying nanosecond current pulses to narrow superconducting Nb strips, we have observed the induced resistive states expected for quasi 1-D transport, namely localized phase-slip centres (PSC) and hot spots (HS). The current-controlled drive discriminates stable-in-time PSC structures near T c from expanding HS at lower temperatures. HS-PSC exchange and return towards equilibrium are studied by using two-step current pulses. Remarkably, it appears that a hot spot never forms unless a PSC has first been nucleated. Then from a plot of the threshold currents I c(T) and I h(T), corresponding to PSC and HS, respectively, one can predict the response to current, temperature, or luminous excitation, as well as the effect of an applied magnetic field.

Original languageEnglish
Pages (from-to)103-122
Number of pages20
JournalJournal of Low Temperature Physics
Issue number3-4
StatePublished - 2008
Externally publishedYes


  • Hot spots
  • Niobium
  • Phase slip centres
  • Superconducting thin films

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science (all)
  • Condensed Matter Physics


Dive into the research topics of 'Current-temperature diagram of resistive states in long superconducting niobium filaments'. Together they form a unique fingerprint.

Cite this