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Measurement of the Landau velocity in He II.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Published
<mark>Journal publication date</mark>18/08/1980
<mark>Journal</mark>Physics Letters A
Issue number4
Volume78
Number of pages3
Pages (from-to)358-360
Publication StatusPublished
<mark>Original language</mark>English

Abstract

We report the preliminary results of an experiment to measure the Landau critical velocity in He II. Our measurements, for pressures P in the range 19 < P < 25 bar, agree to better than 1% with values of vL calculated from accepted values of the Landau parameters, but lie systematically above them.