Interacting nanopatterned pins: barriers towards creating interstitial vortices

Details Interacting nanopatterned pins: barriers towards creating interstitial vortices Interacting nanopatterned pins: barriers towards creating interstitial vortices

2008-11-10

arxiv.org/abs/0811.1256v1

Physics

Condensed Matter

Superconductivity

10 pages with 4 figures. Journal Status:Submitted

Scientific paper

We show that by nano-patterning a superconductor (NbSe2 single crystal) with an array of blind holes produces significant magnetic field sweep rate dependent metastable magnetization response. Our results are explained on the basis of a unique collective action of the blind holes pins which creates a barrier against vortex redistribution inside the sample. We propose that this barrier leads to a phase separation creating distinct population of vortices viz., those pinned on blind holes and those confined in the interstitials between the holes.

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