Flow induced organization and memory of a vortex lattice

Z. L. Xiao, Eva Andrei, M. J. Higgins

Research output: Contribution to journalArticlepeer-review

116 Scopus citations

Abstract

We report on the evolution of a vortex state in response to a driving current in 2H-NbSe2crystals. By using fast transport measurements we find that the current enables the system to reorganize and access new configurations. During this process the system exhibits a long-term memory: if the current is turned off the vortices freeze in place remembering their prior motion. When the current is restored the motion resumes where it stopped. The experiments provide evidence for a current driven structural change of the vortex lattice and a corresponding dynamic phase diagram that contains a previously unknown regime where the critical current can be either increased or decreased by applying an appropriate current.

Original languageEnglish (US)
Pages (from-to)1664-1667
Number of pages4
JournalPhysical review letters
Volume83
Issue number8
DOIs
StatePublished - Jan 1 1999

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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