Spatially Resolved Low-Temperature Scanning Tunneling Spectroscopy on AuFe Spin-Glass Films

Abstract

In this contribution, we will demonstrate the possibility to study size effects in thin films of AuFe spin-glass alloys by investigating the differential conductance near the Fermi level with low-temperature scanning tunneling spectroscopy (STS). As confirmed by point contact expenments, the voltage dependence of the differential conductance can be directly linked to the tempereture dependence of the resistivity 8. The STS measurements provide the unique possibility to probe possible spatial variations of the size effects. Moreoven combining the STS measurements with topographic scanning tunneling micrescopy (STM) images of the surface may allow to check the influence of the local surface roughness on the spin scattering processes.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1998
Accession Number
ADP012741

Entities

People

  • A. Depuydt
  • G. Neuttiens
  • N. S. Maslova
  • S. V. Savinov
  • V. I. Panov

Organizations

  • Katholieke Universiteit Leuven - Universiteitsarchief

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Alloys
  • Electron Beam Lithography
  • Electron Energy
  • Electrons
  • Fermi Levels
  • Films
  • Low Temperature
  • Magnetic Alloys
  • Magnetic Fields
  • Measurement
  • Nanostructures
  • Quantum Properties
  • Quantum Tunneling
  • Scanning
  • Scattering
  • Surface Roughness
  • Thin Films

Fields of Study

  • Physics

Readers

  • Superconducting Magnet Technology
  • Thin Film Deposition Science.