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Vibrating Wire Thermometry in High B/T

The vibrating wire thermometer measures the viscosity of the superfluid medium in which it vibrates. The temperature is determined form the known temperature dependence of the viscosity.

The viscometer used for low viscosity dilute 3He in 4He liquid samples consisted of a 0,84 mm diameter epoxy rod glued to the center of a 36.7 μm diameter manganin wire. The overall height was 8 mm with a distance of 6 mm between the two legs. This design was sufficiently large that the wire interacts hydrodynamically with the quasiparticle gas down to 1 mK.


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Images & Sample Data

Credit: National MagLab

Related Publications

Akimoto, H., et al, New Evidence for Zero-Temperature Relaxation in Spin-Polarized Fermi Liquid, Phys. Rev. Lett., 90, 105301-105304 (2003)

Akimoto, H., et al, Giant viscosity enhancement in a spin-polarized Fermi liquid, Phys. Rev. Lett., 99, 095301 (2007)

Akimoto, H., et al, Spin Transport in Very Dilute 3He -4He at Very High B/T, J. Low Temp. Phys., 126, 109 (2002)

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Last modified on 23 December 2022

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