284 citations · 6.2k across the 142 of their papers we have counts for
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Discrete states and ballistic interference in quantum wires approaching macroscopic lengths
Henok Weldeyesus, Taras Patlatiuk, Christian P. Scheller +4
Increasing the size of a system showing quantum effects is a difficult task limited by decoherence, a diminishing quantum level spacing, and the effects of disorder spoiling the qu…
Signatures of correlated defects in an ultra-clean Wigner crystal in the extreme quantum limit
P. T. Madathil, C. Wang, S. K. Singh +8
Low-disorder two-dimensional electron systems in the presence of a strong, perpendicular magnetic field terminate at very small Landau level filling factors in a Wigner crystal (WC…
Moving crystal phases of a quantum Wigner solid in an ultra-high-quality 2D electron system
P. T. Madathil, K. A. Villegas Rosales, Y. J. Chung +5
In low-disorder, two-dimensional electron systems (2DESs), the fractional quantum Hall states at very small Landau level fillings () terminate in a Wigner solid (WS) phase, wher…
Delocalization and Universality of the Fractional Quantum Hall Plateau-to-Plateau Transitions
P. T. Madathil, K. A. Villegas Rosales, C. T. Tai +5
Disorder and electron-electron interaction play essential roles in the physics of electron systems in condensed matter. In two-dimensional, quantum Hall systems, extensive studies…
Valley-tunable, even-denominator fractional quantum Hall state in the lowest Landau level of an anisotropic system
Md. Shafayat Hossain, M. K. Ma, Y. J. Chung +7
Fractional quantum Hall states (FQHSs) at even-denominator Landau level filling factors () are of prime interest as they are predicted to host exotic, topological states of matt…
Highly-Anisotropic Even-Denominator Fractional Quantum Hall State in an Orbitally-Coupled Half-Filled Landau Level
Chengyu Wang, A. Gupta, Y. J. Chung +5
The even-denominator fractional quantum Hall states (FQHSs) in half-filled Landau levels are generally believed to host non-Abelian quasiparticles and be of potential use in topolo…
Robust Quantum Hall Ferromagnetism near a Gate-Tuned ν = 1 Landau Level Crossing
Meng K. Ma, Chengyu Wang, Y. J. Chung +5
In a low-disorder two-dimensional electron system, when two Landau levels of opposite spin or pseudospin cross at the Fermi level, the dominance of the exchange energy can lead to…
Fractional quantum Hall effect energy gap: role of electron layer thickness
K. A. Villegas Rosales, P. T. Madathil, Y. J. Chung +4
The fractional quantum Hall effect (FQHE) stands as a quintessential manifestation of an interacting two-dimensional electron system. One of FQHE's most fundamental characteristics…
Competition between fractional quantum Hall liquid and Wigner solid at small fillings: Role of layer thickness and Landau level mixing
K. A. Villegas Rosales, S. K. Singh, Meng K. Ma +6
What is the fate of the ground state of a two-dimensional electron system (2DES) at very low Landau level filling factors () where interaction reigns supreme? An ordered array o…
Thermal and quantum melting phase diagrams for a magnetic-field-induced Wigner solid
Meng K. Ma, K. A. Villegas Rosales, H. Deng +6
A sufficiently large perpendicular magnetic field quenches the kinetic (Fermi) energy of an interacting two-dimensional (2D) system of fermions, making them susceptible to the form…
Anomalous Nematic States in High Half-Filled Landau Levels
X. Fu, Q. Shi, M. A. Zudov +6
It is well established that the ground states of a two-dimensional electron gas with half-filled high () Landau levels are compressible charge-ordered states, known as qua…
Composite fermions in a wide quantum well in the vicinity of the filling factor 1/2
I. L. Drichko, I. Yu. Smirnov, A. V. Suslov +5
Using acoustic method we study dependences of transverse AC conductance, , on magnetic field, temperature and the amplitude of AC electric field in a wide (75 nm) quantum wel…
Interference measurements of non-Abelian e/4 & Abelian e/2 quasiparticle braiding
R. L. Willett, K. Shtengel, C. Nayak +6
The quantum Hall states at filling factors and are expected to have Abelian charge quasiparticles and non-Abelian charge quasiparticles. The non-Abelian s…
Probing the Melting of a Two-dimensional Quantum Wigner Crystal via its Screening Efficiency
H. Deng, L. N. Pfeiffer, K. W. West +3
One of the most fundamental and yet elusive collective phases of an interacting electron system is the quantum Wigner crystal (WC), an ordered array of electrons expected to form w…
Unconventional anisotropic even-denominator fractional quantum Hall state in a system with mass anisotropy
Md. Shafayat Hossain, Meng K. Ma, Y. J. Chung +4
The fractional quantum Hall state (FQHS) observed at a half-filled Landau level in an interacting two-dimensional electron system (2DES) is among the most exotic states of matter a…
High-mobility indirect excitons in wide single quantum well
C. J. Dorow, M. W. Hasling, D. J. Choksy +4
Indirect excitons (IXs) are bound pairs of electrons and holes confined in spatially separated layers. We present wide single quantum well (WSQW) heterostructures with high IX mobi…
Realization of a Valley Superlattice
M. A. Mueed, Md. Shafayat Hossain, I. Jo +4
In a number of widely-studied materials, such as Si, AlAs, Bi, graphene, MoS2, and many transition metal dichalcogenide monolayers, electrons acquire an additional, spin-like degre…
Direct observation of composite fermions and their fully spin-polarized Fermi sea near
Md. Shafayat Hossain, Meng K. Ma, M. A. Mueed +4
The enigmatic even-denominator fractional quantum Hall state at Landau level filling factor is arguably the most promising candidate for harboring Majorana quasi-particles…
Thermopower and Nernst measurements in a half-filled lowest Landau level
Xiaoxue Liu, Tingxin Li, Po Zhang +4
Motivated by recent proposal by Potter et al. [Phys. Rev. X 6, 031026 (2016)] concerning possible thermoelectric signatures of Dirac composite fermions, we perform a systematic exp…
Cyclotron Orbits of Composite Fermions in the Fractional Quantum Hall Regime
Insun Jo, Hao Deng, Yang Liu +4
We study a bilayer GaAs hole system that hosts two distinct many-body phases at low temperatures and high perpendicular magnetic fields. The higher-density (top) layer develops a F…
Split-gate device for indirect excitons
C. J. Dorow, J. R. Leonard, M. M. Fogler +3
We present a concept and experimental proof of principle for split-gate devices for indirect excitons (IXs). The split-gate forms a narrow channel, a point contact, for IX current.…
Parafermion supporting platform based on spin transitions in the fractional quantum Hall effect regime
Tailung Wu, Aleksandr Kazakov, George Simion +7
We propose an experimentally-feasible system based on spin transitions in the fractional quantum Hall effect regime where parafermions, high-order non-abelian excitations, can be p…
Low-Frequency Microwave Induced Quantum Oscillations in A Two-Dimensional Electron System
Jian Mi, Huiying Liu, Junren Shi +4
We study the magnetoresistance of an ultrahigh mobility GaAs/AlGaAs two-dimensional electron sample in a weak magnetic field under low-frequency (f < 20 GHz) microwave (MW) irradia…
Design rules for modulation-doped AlAs quantum wells
Yoon Jang Chung, K. W. Baldwin, K. W. West +3
Thanks to their multi-valley, anisotropic, energy band structure, two-dimensional electron systems (2DESs) in modulation-doped AlAs quantum wells (QWs) provide a unique platform to…