Universal Temperature Dependence, Flux Extinction, and the Role of He3 Impurities in Superfluid Mass Transport through Solid He4

Ye. Vekhov, W. J. Mullin, and R. B. Hallock
Phys. Rev. Lett. 113, 035302 – Published 17 July 2014; Erratum Phys. Rev. Lett. 115, 019902 (2015)

Abstract

The mass flux, F, carried by as-grown solid He4 in the range 25.6–26.3 bar rises with falling temperature, and at a concentration-dependent temperature, Td, the flux decreases sharply within a few mK. We study F as a function of He3 impurity concentration, χ. We find that Td is an increasing function of increasing χ. At temperatures above Td the flux has a universal temperature dependence and the flux terminates in a narrow window near a characteristic temperature Th625mK, which is independent of χ.

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  • Received 14 April 2014

DOI:https://doi.org/10.1103/PhysRevLett.113.035302

© 2014 American Physical Society

Erratum

Authors & Affiliations

Ye. Vekhov, W. J. Mullin, and R. B. Hallock

  • Laboratory for Low Temperature Physics, Department of Physics, University of Massachusetts, Amherst, Massachusetts 01003, USA

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Issue

Vol. 113, Iss. 3 — 18 July 2014

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