L. J. Taskinen
University of New South Wales
6 Papers
25 Citations
L. J. Taskinen is an academic researcher from University of New South Wales. The author has contributed to research in topics: Quantum Hall effect & Reflectometry. The author has an hindex of 3, co-authored 6 publications.
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Papers
Radio-frequency reflectometry on large gated 2-dimensional systems
L. J. Taskinen,R. P. Starrett,T. P. Martin,Adam P. Micolich,Alex R. Hamilton,Michelle Y. Simmons,D. A. Ritchie,Michael Pepper +7 more
TL;DR: In this paper, an AlGaAs/GaAs based, gated 2D hole system (2DHS) was embedded into an impedance transformer $LC$ circuit, and it was shown that by using radio-frequency reflectometry it is possible to perform sensitive, large bandwidth, electrical resistance measurements of 2D systems at mK temperatures.
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Origin of the hysteresis in bilayer two-dimensional systems in the quantum Hall regime
L. H. Ho,L. H. Ho,L. J. Taskinen,Adam P. Micolich,Alex R. Hamilton,Paola Atkinson,David A. Ritchie +6 more
TL;DR: In this paper, the magnetoresistance of bilayer two-dimensional (2D) systems in the quantum Hall regime is attributed to the long-time constant for charge transfer between the 2D systems due to the very low conductivity of the Quantum Hall bulk states.
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Electrometry using the quantum Hall effect in a bilayer two-dimensional electron system
TL;DR: In this article, the development of a sensitive electrometer that utilizes a two-dimensional electron gas (2DEG) in the quantum Hall regime is discussed, and the evolution of the Landau levels in a nearby 2DEG as the applied perpendicular magnetic field is changed, and an effective mass for electrons in GaAs that agrees within experimental error with previous measurements.
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Electrometry using the quantum Hall effect in a bilayer 2D electron system
TL;DR: In this article, the development of a sensitive electrometer that utilizes a two-dimensional electron gas (2DEG) in the quantum Hall regime is discussed, and the evolution of the Landau levels in a nearby 2DEG as the applied perpendicular magnetic field is changed, and an effective mass for electrons in GaAs that agrees within experimental error with previous measurements.
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Radio-frequency reflectometry-A fast and sensitive measurement method for two-dimensional systems
L. J. Taskinen,R. P. Starrett,T. P. Martin,J. C. H. Chen,Adam P. Micolich,Alex R. Hamilton,Michelle Y. Simmons,David A. Ritchie,Michael Pepper +8 more
TL;DR: In this paper, a simple lumped element model, where the gated 2D system is described as a resistive transmission line, qualitatively agrees with the experimental findings. But the sample geometry is important in explaining the rf response of the circuit.
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