133 citations · 201 across the 7 of their papers we have counts for
13 papers · 1 filter
Nuclear spin coherence in a quantum wire
A. Corcoles, C. J. B. Ford, M. Pepper +3
We have observed millisecond-long coherent evolution of nuclear spins in a quantum wire at 1.2 K. Local, all-electrical manipulation of nuclear spins is achieved by dynamic nuclear…
Magnetic Field Induced Instabilities in Localised Two-Dimensional Electron Systems
M. Baenninger, A. Ghosh, M. Pepper +3
We report density dependent instabilities in the localised regime of mesoscopic two-dimensional electron systems (2DES) with intermediate strength of background disorder. They are…
Anomalous Coulomb drag in electron-hole bilayers
A. F. Croxall, K. Das Gupta, C. A. Nicoll +5
We report Coulomb drag measurements on GaAs-AlGaAs electron-hole bilayers. The two layers are separated by a 10 or 25nm barrier. Below T1K we find two features that a Ferm…
Fabrication of closely spaced, independently contacted Electron-Hole bilayers in GaAs-AlGaAs heterostructures
J. A. Keogh, K. Das Gupta, H. E. Beere +2
We describe a technique to fabricate closely spaced electron-hole bilayers in GaAs-AlGaAs heterostructures. Our technique incorporates a novel method for making shallow contacts to…
Low-Temperature Collapse of Electron Localisation in Two Dimensions
M. Baenninger, A. Ghosh, M. Pepper +3
We report direct experimental evidence that the insulating phase of a disordered, yet strongly interacting two-dimensional electron system (2DES) becomes unstable at low temperatur…
Quantisation of Hopping Magnetoresistance Prefactor in Strongly Correlated Two-Dimensional Electron Systems
Matthias Baenninger, Arindam Ghosh, Michael Pepper +4
We report an universal behaviour of hopping transport in strongly interacting mesoscopic two-dimensional electron systems (2DES). In a certain window of background disorder, the re…