5 papers
Negative Differential Resistance and Astability of the Wigner Solid
G. A. Csathy, D. C. Tsui, L. N. Pfeiffer +1
We report an unusual breakdown of the magnetically induced Wigner solid in an exceptional two-dimensional electron gas. The current-voltage characteristic is found to be hysteretic…
Tilt Induced Localization and Delocalization in the Second Landau Level
G. A. Csathy, J. S. Xia, C. L. Vicente +6
We have investigated the behavior of electronic phases of the second Landau level under tilted magnetic fields. The fractional quantum Hall liquids at 2+1/5 and 2+4/5 and the s…
Transition from a fractional quantum Hall liquid to an electron solid at Landau level filling nu = 1/3 in tilted magnetic fields
W. Pan, G. A. Csathy, D. C. Tsui +2
We have observed in a low density two-dimensional hole system (2DHS) of extremely high quality (with hole density p=1.6x10^{10} cm^{-2} and mobility μ=0.8x10^6 cm^2/Vs) that, as th…
Magnetic Field Induced Insulating Phases at Large
G. A. Csáthy, Hwayong Noh, D. C. Tsui +2
Exploring a backgated low density two-dimensional hole sample in the large regime we found a surprisingly rich phase diagram. At the highest densities, beside the , 2/…
Possible observation of phase coexistence of the fractional quantum Hall liquid and a solid
G. A. Csathy, D. C. Tsui, L. N. Pfeiffer +1
We have measured the magnetoresistance of a very low density and an extremely high quality two-dimensional hole system. With increasing magnetic field applied perpendicularly to th…