52 citations · 261 across the 11 of their papers we have counts for
11 papers
Anisotropic composite fermions and fractional quantum Hall effect
M. A. Mueed, D. Kamburov, S. Hasdemir +4
We study the role of anisotropy on the transport properties of composite fermions near Landau level filling factor in two-dimensional holes confined to a GaAs quantum well.…
Observation of An Anisotropic Wigner Crystal
Yang Liu, S. Hasdemir, L. N. Pfeiffer +3
We report a new correlated phase of two-dimensional charged carriers in high magnetic fields, manifested by an anisotropic insulating behavior at low temperatures. It appears near…
Unusual Landau Level Pinning and Correlated Quantum Hall Effect in Hole Systems Confined to Wide GaAs Quantum Wells
Yang Liu, S. Hasdemir, M. Shayegan +3
In two-dimensional hole systems confined to wide GaAs quantum wells, where the heavy- and light- hole states are close in energy, we observe a very unusual crossing of the lowest t…
Composite Fermion Geometric Resonance Near ν = 1/2 Fractional Quantum Hall State
M. A. Mueed, D. Kamburov, S. Hasdemir +4
We observe geometric resonance features of composite fermions on the flanks of the even denominator ν = 1/2 fractional quantum Hall state in high-mobility two-dimensional electron…
Multicomponent fractional quantum Hall states with subband and spin degrees of freedom
Yang Liu, S. Hasdemir, J. Shabani +4
In wide GaAs quantum wells where two electric subbands are occupied we apply a parallel magnetic field or increase the electron density to cause a crossing of the two Landau…
Fractional Quantum Hall Effect in Tilted Magnetic Fields
Sukret Hasdemir, Yang Liu, H. Deng +4
Magnetotransport measurements on two-dimensional electrons confined to wide GaAs quantum wells reveal a remarkable evolution of the ground state at filling factor as we til…
Fractional Quantum Hall Effect and Wigner Crystal of Two-Flux Composite Fermions
Yang Liu, D. Kamburov, S. Hasdemir +4
In two-dimensional electron systems confined to GaAs quantum wells, as a function of either tilting the sample in magnetic field or increasing density, we observe multiple transiti…
Spin-Polarization of Composite Fermions and Particle-Hole Symmetry Breaking
Yang Liu, S. Hasdemir, A. Wójs +5
We study the critical spin-polarization energy () above which fractional quantum Hall states in two-dimensional electron systems confined to symmetric GaAs quantum wells…
Even-denominator Fractional Quantum Hall Effect at a Landau Level Crossing
Yang Liu, S. Hasdemir, D. Kamburov +6
The fractional quantum Hall effect (FQHE), observed in two-dimensional (2D) charged particles at high magnetic fields, is one of the most fascinating, macroscopic manifestations of…
Fractional Quantum Hall Effect at in Hole Systems Confined to GaAs Quantum Wells
Yang Liu, A. L. Graninger, S. Hasdemir +5
We observe fractional quantum Hall effect (FQHE) at the even-denominator Landau level filling factor in two-dimensional hole systems confined to GaAs quantum wells of width…
Evidence for a Fractional Quantum Hall Nematic State in Parallel Magnetic Fields
Yang Liu, S. Hasdemir, M. Shayegan +3
We report magneto-transport measurements for the fractional quantum Hall state at filling factor 5/2 as a function of applied parallel magnetic field (). As i…