242 citations · 541 across the 6 of their papers we have counts for
6 papers
Unusual conductance collapse in one-dimensional quantum structures
KJ Thomas, DL Sawkey, M Pepper +4
We report an unusual insulating state in one-dimensional quantum wires with a non-uniform confinement potential. The wires consist of a series of closely spaced split gates in high…
Three Key Questions on Fractal Conductance Fluctuations: Dynamics, Quantization and Coherence
A. P. Micolich, R. P. Taylor, T. P. Martin +9
Recent investigations of fractal conductance fluctuations (FCF) in electron billiards reveal crucial discrepancies between experimental behavior and the semiclassical Landauer-Butt…
Spin Properties of Low Density One-Dimensional Wires
K. J. Thomas, J. T. Nicholls, M. Pepper +3
We report conductance measurements of a ballistic one-dimensional (1D) wire defined in the lower two-dimensional electron gas of a GaAs/AlGaAs double quantum well. At low temperatu…
Controlled Wavefunction Mixing in a Strongly Coupled One-Dimensional Wire
K. J. Thomas, J. T. Nicholls, M. Y. Simmons +3
We investigate the transport properties of two strongly coupled ballistic one-dimensional (1D) wires, defined by a split-gate structure deposited on a GaAs/AlGaAs double quantum we…
A Thermometer for the 2D Electron Gas using 1D Thermopower
N. J. Appleyard, J. T. Nicholls, M. Y. Simmons +2
We measure the temperature of a 2D electron gas in GaAs from the thermopower of a one-dimensional ballistic constriction, using the Mott relation to confirm the calibration from th…
Interaction Effects in a One-Dimensional Constriction
K. J. Thomas, J. T. Nicholls, N. J. Appleyard +5
We have investigated the transport properties of one-dimensional (1D) constrictions defined by split-gates in high quality GaAs/AlGaAs heterostructures. In addition to the usual qu…