Visualizing flux distribution of superconductors in external magnetic fields with magnetic force microscopy

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Autor/in:
Erscheinungsjahr:
2006
Medientyp:
Text
Schlagworte:
  • Magnetic force microscopy
  • Magnetism
  • MFM tip
  • Magnetic Anisotropy
  • Magnetization
  • Magnetic force microscopy
  • Magnetism
  • MFM tip
  • Magnetic Anisotropy
  • Magnetization
Beschreibung:
  • We visualized the flux distribution of a Bi2 Sr2 CaCu2 O8+δ single crystal in transversal geometry by using low temperature magnetic force microscopy in the dynamic mode. With increasing external magnetic field, the magnetic flux density exhibited a distribution, which generally followed the Bean model. When the propagating flux front passed through the imaging area, we could observe a shift of the magnetic force microscopy signal toward an unexpected direction. The origin of this shift was studied by considering very long-range magnetic force due to the specific flux and current distribution near the propagating flux front. © 2006 The American Physical Society.
Lizenz:
  • info:eu-repo/semantics/closedAccess
Quellsystem:
Forschungsinformationssystem der UHH
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oai:www.edit.fis.uni-hamburg.de:publications/28f5025e-c339-4843-9a9b-9866b6386a20