AC Current Driven Dynamic Vortex State in YBa2Cu3O7-x (Postprint)

Abstract

Time-resolved magneto-optical imaging measurements show that an ac current enables the vortex matter in YBa2Cu3O7-x thin films to reorganize into two coexisting steady states of driven vortex motion with different characteristics: a quasi-static disordered glassy state in the sample interior and a dynamic state of plastic motion near the edges. Finite element calculations consistent with the critical state model show good agreement with the measured field profiles in the quasi-static state but predict a larger hysteretic behavior in the dynamic state.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 2012
Accession Number
ADA561057

Entities

People

  • A. Frey
  • A. Lucarelli
  • F. Grilli
  • G. Levin
  • G. Lupke
  • P. Barnes
  • Rong Yang
  • Timothy J. Haugan

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Sensors

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Air Force Research Laboratories
  • Current Density
  • Energy
  • Films
  • Magnetic Fields
  • Materials
  • Materials Science
  • Measurement
  • Military Research
  • Physics
  • Shielding
  • Simulations
  • Steady State
  • Superconductors
  • Thin Films

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Materials Science and Engineering.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.