Unpublished Paper
Universal temperature dependence, flux extinction and the role of 3He impurities in superfluid mass transport through solid 4He
PHYSICAL REVIEW LETTERS
(2014)
Abstract
The mass flux, F, carried by as-grown solid 4_He in the range 25.6-26.3 bar rises with falling temperature, and at a concentration-dependent temperature, T_d, the flux decreases sharply within a few mK. We study F as a function of 3_He impurity concentration, χ. We find that T_(d )is an increasing function of increasing χ. At temperatures above T_d the flux has a universal temperature dependence and the flux terminates in a narrow window near a characteristic temperature T_h ≈ 625 mK, which is independent of χ.
Disciplines
Publication Date
July 17, 2014
Comments
Pre-published version downloaded from archive ArXiv.org. Published version located at http://journals.aps.org/prl/pdf/10.1103/PhysRevLett.113.035302.
Citation Information
Ye. Vekhov, W. J. Mullin and Robert B. Hallock. "Universal temperature dependence, flux extinction and the role of 3He impurities in superfluid mass transport through solid 4He" PHYSICAL REVIEW LETTERS (2014) Available at: http://works.bepress.com/robert_hallock/65/