Pressure-driven flow of solid helium

Preprint

9 January 2006

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0601149

Abstract

The recent torsional oscillator results of Kim and Chan suggest a supersolid phase transition in solid 4He. We have used a piezoelectrically driven diaphragm to study the flow of solid helium through an array of capillaries. Our measurements showed no indication of low temperature flow, placing stringent restrictions on supersolid flow in response to a pressure difference. The average flow speed at low temperatures was less than 1.2x10-14 m/s, corresponding to a supersolid velocity at least 7 orders of magnitude smaller than the critical velocities inferred from the torsional oscillator measurements.

Keywords

TORSIONAL OSCILLATOR
PHASE TRANSITION
LOW TEMPERATURE
PRESSURE DRIVEN
FLOW OF SOLID
SOLID HELIUM
SUPERSOLID

All Related Versions

Version 1, 2006-01-09, ArXiv
Published version: Physical Review Letters, 96 (10), 105304.

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