4 papers
Evidence of Novel Quasiparticles in a Strongly Interacting Two-Dimensional Electron System: Giant Thermopower and Metallic Behaviour
Vijay Narayan, M. Pepper, J. Griffths +5
We report thermopower () and electrical resistivity () measurements in low-density (10 m), mesoscopic two-dimensional electron systems (2DESs) in GaAs/Al…
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…
Experimental studies of T--shaped quantum dot transistors: phase-coherent electron transport
C. -T. Liang, J. E. F. Frost, M. Pepper +2
We have measured the low-temperature transport properties of a T-shaped quantum dot. Replicated oscillations superimposed on one-dimensional conductance steps are observed. These s…
The Aharonov-Bohm Effect in the Fractional Quantum Hall Regime
J. D. F. Franklin, I. Zailer, C. J. B. Ford +5
We have investigated experimentally resonant tunnelling through single-particle states formed around an antidot by a magnetic field, in the fractional quantum Hall regime. For 1/3…