70 citations · 129 across the 3 of their papers we have counts for
3 papers
cond-mat.other2010★ 15 cited
Frequency Dependence and Dissipation in the Dynamics of Solid Helium
Oleksandr Syshchenko James Day John Beamish
Torsional oscillator experiments on solid 4He show frequency changes which suggest mass decoupling, but the onset is broad and is accompanied by a dissipation peak. We have measure…
cond-mat.other2010★ 44 cited
Non-linear Elastic Response in Solid Helium: critical velocity or strain
James Day, Oleksandr Syshchenko, John Beamish
Torsional oscillator experiments show evidence of mass decoupling in solid 4He. This decoupling is amplitude dependent, suggesting a critical velocity for supersolidity. We observe…
cond-mat.other2009★ 70 cited
Intrinsic and dislocation induced elastic behavior of solid helium
James Day, Oleksandr Syshchenko, John Beamish
Recent experiments showed that the shear modulus of solid 4He stiffens in the same temperature range (below 200 mK) where mass decoupling and supersolidity have been inferred from…