55 citations · 154 across the 5 of their papers we have counts for
6 papers
The effect of split gate size on the electrostatic potential and 0.7 anomaly within one-dimensional quantum wires on a modulation doped GaAs/AlGaAs heterostructure
L. W. Smith, H. Al-Taie, A. A. J. Lesage +9
We study 95 split gates of different size on a single chip using a multiplexing technique. Each split gate defines a one-dimensional channel on a modulation-doped GaAs/AlGaAs heter…
Dependence of the 0.7 anomaly on the curvature of the potential barrier in quantum wires
L. W. Smith, H. Al-Taie, A. A. J. Lesage +9
Ninety eight one-dimensional channels defined using split gates fabricated on a GaAs/AlGaAs heterostructure are measured during one cooldown at 1.4 K. The devices are arranged in a…
Multiplexed Charge-locking Device for Large Arrays of Quantum Devices
R. K. Puddy, L. W Smith, H. Al-Taie +7
We present a method of forming and controlling large arrays of gate-defined quantum devices. The method uses a novel, on-chip, multiplexed charge-locking system and helps to overco…
Statistical study of conductance properties in one-dimensional quantum wires focussing on the 0.7 anomaly
L. W. Smith, H. Al-Taie, F. Sfigakis +9
The properties of conductance in one-dimensional (1D) quantum wires are statistically investigated using an array of 256 lithographically-identical split gates, fabricated on a GaA…
A low-temperature device architecture for the statistical study of electrical characteristics of 256 quantum devices
H. Al-Taie, L. W. Smith, B. Xu +7
Research in the field of low-temperature electronics is limited by the small number of electrical contacts available on cryogenic set ups. This not only restricts the number of dev…
Cryogenic on-chip multiplexer for the study of quantum transport in 256 split-gate devices
H. Al-Taie, L. W. Smith, B. Xu +7
We present a multiplexing scheme for the measurement of large numbers of mesoscopic devices in cryogenic systems. The multiplexer is used to contact an array of 256 split gates on…