Bridge in micron-sized Bi2Sr2CaCu2O8+y sample act as converging lens for vortices

  title={Bridge in micron-sized Bi2Sr2CaCu2O8+y sample act as converging lens for vortices},
  author={Joaqu{\'i}n Puig and N'estor Ren'e Cejas Bolecek and Jazm'in Arag'on S'anchez and Moira In'es Dolz and Marcin Konczykowski and Yanina Fasano},
  journal={Physica C: Superconductivity and its Applications},
Abstract We report on direct imaging of vortex matter nucleated in micron-sized Bi 2 Sr 2 CaCu 2 O 8 + y superconducting samples that incidentally present a bridge structure. We find that when nucleating vortices in a field-cooling condition the deck of the bridge acts as a converging lens for vortices. By means of Bitter decoration images allowing us to quantify the enhancement of vortex-vortex interaction energy per unit length in the deck of the bridge, we are able to estimate that the deck… 

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