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Evidence for roton creation in a superfluid field emission diode near 0.5 K.

Research output: Contribution to journalJournal articlepeer-review

Published
<mark>Journal publication date</mark>3/12/1973
<mark>Journal</mark>Physics Letters A
Issue number2
Volume46
Number of pages2
Pages (from-to)109-110
Publication StatusPublished
<mark>Original language</mark>English

Abstract

The field emission current in He II near 0.5 K is found to increase rapidly with pressure above 10 bar. We suggest this may be because an increasing fraction of the current is being carried by ions moving at the Landau critical velocity.