Surface electronic structure of Gd(0001) films on W(110)

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Erscheinungsjahr:
1997
Medientyp:
Text
Schlagworte:
  • Gadolinium
  • Magnetism
  • Electrical resistivity
  • Magnetocaloric Effects
  • Intermetallics
  • Specific Heat
  • Gadolinium
  • Magnetism
  • Electrical resistivity
  • Magnetocaloric Effects
  • Intermetallics
  • Specific Heat
Beschreibung:
  • The electronic structure of Gd islands on W(110) was studied by means of scanning tunneling microscopy (STM). The empty and filled parts of the well-known dZ2-like surface state appear as peaks in the tunneling spectra above Gd islands with a local coverage of 4-15 ML but not above the first ML. Small disturbances, induced by the tunneling tip by the application of a bias voltage which exceeds the tunneling barrier height, lead to a collapse of the surface state. This collapse is visible in the apparent height of constant-current STM-images. Scanning tunneling spectroscopy addresses the origin of the change to the suppression of the Gd(0001) surface state by hydrogen transferred from the tip to the surface. © Springer-Verlag 1997.
Lizenz:
  • info:eu-repo/semantics/closedAccess
Quellsystem:
Forschungsinformationssystem der UHH
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oai:www.edit.fis.uni-hamburg.de:publications/365f661f-daf1-4c7b-9de2-e2905ef9ff04