Experiments in superconducting vortex avalanches

E. Altshuler, T. H. Johansen, Y. Paltiel, P. Jin, K. E. Bassler, O. Ramos, G. F. Reiter, E. Zeldov, C. W. Chu

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)


We detect vortex avalanches in superconducting Nb when an external field is slowly ramped up. Through the combination of micro-Hall probe magnetometry and Magneto-optical imaging, we are able to visualize the magnetic field "landscape" where the "local" vortex avalanches take place. We measure the avalanche size statistics at several locations in the magnetic landscape, comprising a number of events orders of magnitude larger than previously reported. The distributions of avalanche sizes show a nearly power-law character, and their details are strikingly independent from the specific features of the "magnetic landscape" where they take place. Some experiments in order to find spatial-temporal correlations between avalanches are also presented.

Original languageEnglish
Pages (from-to)501-504
Number of pages4
JournalPhysica C: Superconductivity and its applications
Issue number1-4
Publication statusPublished - 2004 Aug
EventProceedings of the International Conference on Materials - Rio de Janeiro, Brazil
Duration: 2003 May 252003 May 30

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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