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

研究成果: Conference article同行評審

2 引文 斯高帕斯(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.

頁(從 - 到)501-504
期刊Physica C: Superconductivity and its applications
出版狀態Published - 2004 8月
事件Proceedings of the International Conference on Materials - Rio de Janeiro, Brazil
持續時間: 2003 5月 252003 5月 30

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學
  • 能源工程與電力技術
  • 電氣與電子工程


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