Publications (20)
Angle-dependence of quantum oscillations in YBa2Cu3O6.59 shows free spin behaviour of quasiparticles
B. J. Ramshaw, Baptiste Vignolle, James Day +4
Measurements of quantum oscillations in the cuprate superconductors afford a new opportunity to assess the extent to which the electronic properties of these materials yield to a d…
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…
From Floors to Electrons: Using a Building Analogy and Cartooning to Teach Quantum Numbers
James Day, Simone Williamson
Aspects of quantum physics are no longer confined to the upper years of a physics degree. Concepts like superposition or entanglement that were once reserved for second- or third-y…
Non-local electrodynamics in ultra-pure PdCoO
Graham Baker, Timothy W. Branch, J. S. Bobowski +11
The motion of electrons in the vast majority of conductors is diffusive, obeying Ohm's law. However, the recent discovery and growth of high-purity materials with extremely long el…
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…