Spin-polarized scanning tunneling spectroscopy of dislocation lines in Fe films on W(110)

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Erscheinungsjahr:
2006
Medientyp:
Text
Schlagworte:
  • dislocation lines
  • spin-polarized scanning tunneling microscopy
  • spin-resolved electronic structure
  • thin magnetic films
Beschreibung:
  • We have studied the spin-resolved electronic properties of dislocation lines on the Fe double-layer (DL) on W(1 1 0) by spin-polarized scanning tunneling spectroscopy. The data reveal that the dislocation lines are ferromagnetically ordered with the magnetic contrast exhibiting a pronounced bias-dependence. By comparing tunneling spectra which were measured on the pseudomorphic DL and at different lateral separation from the dislocation line, we find a pronounced shift of a peak which originally appears at positive sample bias towards the Fermi level EF. In contrast, the binding energy of a peak just below EF remains constant but increases in intensity. This causes a pronounced modification of the bias voltage-dependent magnetic asymmetry.
Lizenz:
  • info:eu-repo/semantics/closedAccess
Quellsystem:
Forschungsinformationssystem der UHH

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oai:www.edit.fis.uni-hamburg.de:publications/ba2c9292-1c4d-4b83-847a-c798fa152e87