44 citations · 55 across the 4 of their papers we have counts for
7 papers
Measurements of Composite Fermion Conductivity Dependence on Carrier Density
C. -T. Liang, M. Y. Simmons, D. A. Ritchie +1
We present the first experimental study of the carrier density dependence of the composite fermion conductivity at Landau level filling factors and $ν= {3/…
Can the conductance of an adiabatic ballistic constriction be lower than ?
C. -T. Liang, O. A. Tkachenko, V. A. Tkachenko +4
We have performed four-terminal conductance measurements of a one-dimensional (1D) channel in which it is possible to modulate the potential profile using three overlaying finger g…
STM characterization of the Si-P heterodimer
N. J. Curson, S. R. Schofield, M. Y. Simmons +3
We use scanning tunneling microscopy (STM) and Auger electron spectroscopy to study the behavior of adsorbed phosphine (PH) on Si(001), as a function of annealing temperature…
Interaction Effects at Crossings of Spin-Polarised One-Dimensional Subbands
A. C. Graham, K. J. Thomas, M. Pepper +3
We report conductance measurements of ballistic one-dimensional (1D) wires defined in GaAs/AlGaAs heterostructures in an in-plane magnetic field, B. When the Zeeman energy is equal…
Universal behaviour in the floating up of quantum Hall extended states as B -> 0
C. E. Yasin, M. Y. Simmons, A. R. Hamilton +4
We investigate the relationship between the quantum Hall extended states and the apparent B=0 `metal'-insulator transition in extremely low density, high quality two-dimensional n-…
Towards the fabrication of phosphorus qubits for a silicon quantum computer
J. L. O'Brien, S. R. Schofield, M. Y. Simmons +7
The quest to build a quantum computer has been inspired by the recognition of the formidable computational power such a device could offer. In particular silicon-based proposals, u…