Graham, A. C., Sawkey, D. L., Pepper, M., Simmons, M. Y., Ritchie, D. A.
We study the effects of electron-electron interactions on the energy levels of GaAs quantum wires (QWs) using finite-bias spectroscopy. We probe the energy spectrum at zero magnetic field, and at...
Anomalous spin-dependent behaviour of one-dimensional subbands (2007)
Graham, A. C., Pepper, M., Simmons, M. Y., Ritchie, D. A.
We report a new electron interaction effect in GaAs/AlGaAs quantum wires. Using DC-bias spectroscopy, we show that large and abrupt changes occur to the energies of spin-down (lower energy) states as...
Hyperfine effects in quantum wires (2005)
Sawkey, D. L., Thomas, K. J., Pepper, M., Tripathi, V., Khmelnitskii, D. E., Graham, A. C., ...
This paper has been removed.
Fano factor reduction on the 0.7 structure in a ballistic one-dimensional wire (2004)
Roche, P., Ségala, J., Glattli, D. C., Nicholls, J. T., Pepper, M., Graham, A. C., ...
We have measured the non-equilibrium current noise in a ballisticone-dimensional wire which exhibits an additional conductanceplateau at $0.7\times2e^2/h$. The Fano factor shows a clearreduction on...
Fano factor reduction on the 0.7 structure in a ballistic one-dimensional wire (2004)
Roche, P., Ségala, J., Glattli, D. C., Nicholls, J. T., Pepper, M., Graham, A. C., ...
We have measured the non-equilibrium current noise in a ballisticone-dimensional wire which exhibits an additional conductanceplateau at $0.7\times2e^2/h$. The Fano factor shows a clearreduction on...
Fano factor reduction on the 0.7 structure in a ballistic one-dimensional wire (2004)
Roche, P., Ségala, J., Glattli, D. C., Nicholls, J. T., Pepper, M., Graham, A. C., ...
We have measured the non-equilibrium current noise in a ballisticone-dimensional wire which exhibits an additional conductanceplateau at $0.7\times2e^2/h$. The Fano factor shows a clearreduction on...
Fano factor reduction on the 0.7 structure in a ballistic one-dimensional wire (2004)
Roche, P., Ségala, J., Glattli, D. C., Nicholls, J. T., Pepper, M., Graham, A. C., ...
We have measured the non-equilibrium current noise in a ballisticone-dimensional wire which exhibits an additional conductanceplateau at $0.7\times2e^2/h$. The Fano factor shows a clearreduction on...
Fano factor reduction on the 0.7 structure in a ballistic one-dimensional wire (2004)
Roche, P., Segala, J., Glattli, D. C., Nicholls, J. T., Pepper, M., Graham, A. C., ...
We have measured the non-equilibrium current noise in a ballisticone-dimensional wire which exhibits an additional conductanceplateau at $0.7\times2e^2/h$. The Fano factor shows a clearreduction on...
Imaging Fractal Conductance Fluctuations and Scarred Wave Functions in a Quantum Billiard (2003)
Crook, R., Smith, C. G., Graham, A. C., Farrer, I., Beere, H. E., Ritchie, D. A.
We present scanning-probe images and magnetic-field plots which reveal fractal conductance fluctuations in a quantum billiard. The quantum billiard is drawn and tuned using erasable electrostatic...
Interaction Effects at Crossings of Spin-Polarised One-Dimensional Subbands (2003)
Graham, A. C., Thomas, K. J., Pepper, M., Cooper, N. R., Simmons, M. Y., Ritchie, D. A.
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 to the 1D subband...
Effects of accidental microconstriction on the quantized conductance in long wires (2002)
Starikov, A. A., Yakimenko, I. I., Berggren, K. -F., Graham, A. C., Thomas, K. J., Pepper, M., ...
We have investigated the conductance of long quantum wires formed in GaAs/AlGaAs heterostructures. Using realistic fluctuation potentials from donor layers we have simulated numerically the...