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Microscope à balayage à SQUID refroidi par un réfrigérateur en circuit fermé et permettant l'observation d'échantillons à température ambiante.

Closed-cycle refrigerator-cooled scanning SQUID microscope for room-temperature samples.

Auteurs : FLEET E. F., CHATRAPHORN S., WELLSTOOD F. C., et al.

Type d'article : Article

Résumé

The authors have designed, built and operated a scanning superconducting quantum interference device (SQUID) microscope that uses a closed-cycle refrigerator to cool a YBCO dc SQUID to 77 K. The SQUID is mounted in custom vacuum housing that has a thin sapphire window that maintains thermal isolation of the SQUID while allowing samples to be imaged in air at room temperature. Samples are mounted on an x-y scanning table and can be brought to within about 60 microm of the SQUID for magnetic field imaging. The authors describe the performance of the system and present images of a variety of samples.

Détails

  • Titre original : Closed-cycle refrigerator-cooled scanning SQUID microscope for room-temperature samples.
  • Identifiant de la fiche : 2003-0587
  • Langues : Anglais
  • Source : Rev. sci. Instrum. - vol. 72 - n. 8
  • Date d'édition : 08/2001
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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