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cond-mat.other2007★ 322 cited
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…
cond-mat.other2006
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…
cond-mat.other2005
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…