Freezing and pressure-driven flow of solid helium in Vycor
Other Condensed Matter
2009-11-11 v1
Abstract
The recent torsional oscillator results of Kim and Chan suggest a supersolid phase transition in solid He-4 confined in Vycor. We have used a capacitive technique to directly monitor density changes for helium confined in Vycor at low temperature and have used a piezoelectrically driven diaphragm to study the pressure-induced flow of solid helium into the Vycor pores. Our measurements showed no indication of a mass redistribution in the Vycor that could mimic supersolid decoupling and put an upper limit of about 0.003 um/s on any pressure-induced supersolid flow in the pores of Vycor.
Keywords
Cite
@article{arxiv.cond-mat/0506619,
title = {Freezing and pressure-driven flow of solid helium in Vycor},
author = {James Day and Tobias Herman and John Beamish},
journal= {arXiv preprint arXiv:cond-mat/0506619},
year = {2009}
}
Comments
5 pages, 4 figures