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From the magnetic-field-driven transitions to the zero-field transition in two-dimensions
Y. Hanein, D. Shahar, Hadas Shtrikman +3
For more than a decade it was widely accepted that two-dimensional electrons are insulating at zero temperature and at zero magnetic-field. Experimentally it was demonstrated that,…
Wigner crystallization and metal-insulator transition of two-dimensional holes in GaAs/AlGaAs at B=0
Jongsoo Yoon, C. C. Li, D. Shahar +2
We report the transport properties of a low disorder two-dimensional hole system (2DHS) in the GaAs/AlGaAs heterostructure, which has an unprecedentedly high peak mobility of $7\ti…
Continuous Quantum Phase Transitions
S. L. Sondhi, S. M. Girvin, J. P. Carini +1
A quantum system can undergo a continuous phase transition at the absolute zero of temperature as some parameter entering its Hamiltonian is varied. These transitions are particula…
The Nature of the Hall Insulator
D. Shahar, D. C. Tsui, M. Shayegan +3
We have conducted an experimental study of the linear transport properties of the magnetic-field induced insulating phase which terminates the quantum Hall (QH) series in two dimen…
Evidence for charge-flux duality near the quantum Hall liquid to insulator transition
D. Shahar, D. C. Tsui, M. Shayegan +2
We examine the longitudinal, non-linear, current-voltage characteristics near the quantum Hall liquid to insulator transition and show that a simple mapping exists between the char…