Title

Spin-up problem in superfluid He4

Document Type

Article

Publication Date

1-1-1985

Abstract

We report the results of an experimental investigation of the nature of the vortex-boundary interaction and its role in the spin-up problem of superfluid He4. We find evidence for two independence vortex-drag mechanismsa drag associated with vortex lines pulling against pinning sites with a force equal to the line tension and a viscous drag associated with vortex motion through the normal-fluid Ekman layers. © 1985 The American Physical Society.

Publication Source (Journal or Book title)

Physical Review B

First Page

171

Last Page

177

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