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Anomalous Inferred Viscosity and Normal Density Near the 3 He Tc in a Torsion Pendulum

Cornell Affiliated Author(s)

Author

Y. Tian
E. Smith
J. Reppy
J. Parpia

Abstract

Precise measurements of the dissipation and resonant frequency of a torsion pendulum reveal an anomaly in the inferred viscosity and normal density of liquid 3He near the superfluid transition. We present an argument that the anomaly originates in the large viscosity and large viscosity change of the normal component in the torsion tube in the vicinity of the superfluid transition. © 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.

Date Published

Journal

Journal of Low Temperature Physics

Volume

205

Issue

5-6

Number of Pages

226-234,

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85117004783&doi=10.1007%2fs10909-021-02619-2&partnerID=40&md5=06e35d3a76318bad7ee46ef43b83bb7f

DOI

10.1007/s10909-021-02619-2

Group (Lab)

Jeevak Parpia Group

Funding Source

DMR 76-01281
76-21669
DMR 75-08624
DMR-2002692

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