Measurements of superfluid 4He flow through Sub-15 nm aperture arrays

  • J. A. Hoffmann
  • , B. Hunt
  • , M. Wang
  • , C. T. Black
  • , J. C. Davis

Research output: Chapter in Book/Report/Conference proceedingsChapterpeer-review

Abstract

We have constructed an experiment designed to study Josephson phenomena in 4He. Motivated by reports and our ideas for novel silicon nanofabrication techniques, we designed the experiment to study the possibility of a transition from stochastic to coherent phase slippage. Here we briefly describe the nanofabrication of sub-15 nm aperture arrays and show preliminary data. For temperatures below 2 K, these data show temperature dependence of the superfluid critical velocity through the weak link which is characteristic of phase-slip limited flow.

Original languageEnglish
Title of host publicationLOW TEMPERATURE PHYSICS
Subtitle of host publication24th International Conference on Low Temperature Physics - LT24
Pages115-116
Number of pages2
DOIs
Publication statusPublished - 2006
Externally publishedYes
EventLOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 - Orlando, FL, United States
Duration: 10 Aug 200617 Oct 2006

Publication series

NameAIP Conference Proceedings
Volume850
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceLOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24
Country/TerritoryUnited States
CityOrlando, FL
Period10/08/0617/10/06

Keywords

  • Josephson effects
  • Nanofabrication.
  • Superfluid He

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