Observation of unexpected nonlinear effect in the magnetically generated superflow ofHe3−A1

1 November 1986

journal article
research article
Published by American Physical Society (APS) in Physical Review B

Vol. 34 (9) , 6511-6513
https://doi.org/10.1103/physrevb.34.6511

Abstract

An unexpected nonlinear response was observed in the superflows generated in part of the

{}^{3}{He} - A_{1}

phase by applying a magnetic field gradient: No observable superflow could be produced below a temperature-dependent threshold magnetic field gradient. The observation is interpreted as evidence for the presence of up-spin pairs in the

A_{1}

phase contrary to the conventional description.

Keywords

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