3 papers
cond-mat.str-el1997
Comment on ``Electric Field Scaling at B=0 Metal-Insulator Transition in Two Dimensions''
K. Ismail, J. O. Chu, Dragana Popovic +2
In a recent Letter, Kravchenko et al. [cond-mat/9608101] have provided evidence for a metal-insulator transition (MIT) in a two-dimensional electron system (2DES) in Si metal-oxide…
cond-mat1993
Correlations between Aharonov-Bohm effects and one-dimensional subband populations in GaAs/AlGaAs rings
J. Liu, W. X. Gao, K. Ismail +3
The Aharonov-Bohm (AB) interference patterns in ring-shaped conductors are usually dominated by random features. The amplitude of the oscillations is random from sample to sample a…
cond-mat1992
Electron focusing, mode spectroscopy and mass enhancement in small GaAs/AlGaAs rings
J Liu, K Ismail, KY Lee +2
A new electron focusing effect has been discovered in small single and coupled GaAs/AlGaAs rings. The focusing in the single ring is attributed solely to internal orbits. The focus…