22 citations · 59 across the 5 of their papers we have counts for
5 papers
Effect of structural disorder on quantum oscillations in graphite
Bruno Camargo, Yakov Kopelevich, Steven Hubband +1
We have studied the effect of structural disorder on the de Haas van Alphen (dHvA) and Shubnikov de Haas (SdH) quantum oscillations measured in single-crystal and highly oriented p…
Quantum Hall induced currents and the magnetoresistance of a quantum point contact
M. J. Smith, C. D. H. Williams, A. Usher +3
We report an investigation of quantum Hall induced currents by simultaneous measurements of their magnetic moment and their effect on the conductance of a quantum point contact (QP…
Millikelvin de Haas-van Alphen and Magnetotransport studies of Graphite
S. B. Hubbard, T. J. Kershaw, A. Usher +2
Recent studies of the electronic properties of graphite have produced conflicting results regarding the positions of the different carrier types within the Brillouin zone, and the…
The influence of the long-lived quantum Hall potential on the characteristics of quantum devices
M. Pioro-Ladriere, A. Usher, A. S. Sachrajda +5
Novel hysteretic effects are reported in magneto-transport experiments on lateral quantum devices. The effects are characterized by two vastly different relaxation times (minutes a…
Induced currents, frozen charges and the quantum Hall effect breakdown
K. V. Kavokin, M. E. Portnoi, A. J. Matthews +4
Puzzling results obtained from torque magnetometry in the quantum Hall effect (QHE) regime are presented, and a theory is proposed for their explanation. Magnetic moment saturation…