304 citations · 1k across the 13 of their papers we have counts for
13 papers
Berry Phase and Anomalous Transport of the Composite Fermions at the Half-Filled Landau Level
W. Pan, W. Kang, K. W. Baldwin +3
The fractional quantum Hall effect (FQHE) in two-dimensional electron system (2DES) is an exotic, superfluid-like matter with an emergent topological order. From the consideration…
Observation of anti-levitation of Landau levels in vanishing magnetic fields
W. Pan, K. W. Baldwin, K. W. West +2
We report an anti-levitation behavior of Landau levels in vanishing magnetic fields in a high quality hetero-junction insulated-gated field-effect transistor. We found, in the Land…
Competing quantum Hall phases in the second Landau level in low density limit
W. Pan, A. Serafin, J. S. Xia +6
We present in this Letter the results from two high quality, low density GaAs quantum wells. In sample A of electron density n=5.0x10^10 cm^-2, anisotropic electronic transport beh…
Spin Polarization of the 12/5 Fractional Quantum Hall Effect
Chi Zhang, Chao Huan, J. S. Xia +6
We have carried out tilt magnetic field (B) studies of the ν=12/5 fractional quantum Hall state in an ultra-high quality GaAs quantum well specimen. Its diagonal magneto-resistance…
Spin Transition in the ν=8/3 Fractional Quantum Hall Effect
W. Pan, K. W. Baldwin, K. W. West +2
We present here the results from a density dependent study of the activation energy gaps of the fractional quantum Hall effect states at Landau level fillings ν=8/3 and 7/3 in a se…
Experimental studies of the fractional quantum Hall effect in the first excited Landau level
W. Pan, J. S. Xia, H. L. Stormer +7
We present a spectrum of experimental data on the fractional quantum Hall effect (FQHE) states in the first excited Landau level, obtained in an ultrahigh mobility two-dimensional…