Microscope à balayage à effet tunnel fonctionnant à très basse température pour la spectroscopie locale de structures mésoscopiques.

A very low temperature scanning tunnelling microscope for the local spectroscopy of mesoscopic structures.

Auteurs : MOUSSY N., COURTOIS H., PANNETIER B.

Type d'article : Article

Résumé

The authors present the design and operation of a very low temperature scanning tunnelling microscope (STM) working at 60 mK in a dilution refrigerator. The STM features both atomic resolution and micro-sized scanning range at low temperature. An efficient thermalization of the sample while maintaining a clean surface for STM imaging has been achieved. The spectroscopic data show unprecedented energy resolution. Current-voltage characteristics and the deduced local density of states of hybrid superconductor-normal metal systems are presented. This work is the first experimental realization of a local spectroscopy of mesoscopic structures at very low temperature.

Détails

  • Titre original : A very low temperature scanning tunnelling microscope for the local spectroscopy of mesoscopic structures.
  • Identifiant de la fiche : 2003-0003
  • Langues : Anglais
  • Source : Rev. sci. Instrum. - vol. 72 - n. 1
  • Date d'édition : 01/2001
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

Liens


Voir la source