322 citations · 322 across the 1 of their papers we have counts for
5 papers
Low Temperature Shear Modulus Changes in Solid 4-He and Connection to Supersolidity
James Day, John Beamish
Superfluidity, liquid flow without friction, is familiar in helium. The first evidence for "supersolidity", its analogue in quantum solids, came from recent torsional oscillator (T…
Pressure-driven flow of solid helium
James Day, John Beamish
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 s…
Deformation of Silica Aerogel During Fluid Adsorption
Tobias Herman, James Day, John Beamish
Aerogels are very compliant materials - even small stresses can lead to large deformations. In this paper we present measurements of the linear deformation of high porosity aerogel…
Freezing and pressure-driven flow of solid helium in Vycor
James Day, Tobias Herman, John Beamish
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 monit…
Helium adsorption in silica aerogel near the liquid-vapor critical point
Tobias Herman, James Day, John Beamish
We have investigated the adsorption and desorption of helium near its liquid-vapor critical point in silica aerogels with porosities between 95% and 98%. We used a capacitive measu…