63 citations · 372 across the 17 of their papers we have counts for
10 papers · 1 filter
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…
Fractional quantum Hall valley ferromagnetism in the extreme quantum limit
Md. Shafayat Hossain, M. K. Ma, Y. J. Chung +7
Electrons' multiple quantum degrees of freedom can lead to rich physics, including a competition between various exotic ground states, as well as novel applications such as spintro…
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…
Observation of spontaneous valley polarization of itinerant electrons
Md. S. Hossain, M. K. Ma, K. A. Villegas Rosales +5
Memory or transistor devices based on electron's spin rather than its charge degree of freedom offer certain distinct advantages and comprise a cornerstone of spintronics. Recent y…
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…
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…
Negative longitudinal magnetoresistance in GaAs quantum wells
Jing Xu, Meng K. Ma, Maksim Sultanov +10
Negative longitudinal magnetoresistances (NLMRs) have been recently observed in a variety of topological materials and often considered to be associated with Weyl fermions that hav…
Anomalous coupling between magnetic and nematic orders in quantum Hall systems
Md. Shafayat Hossain, M. A. Mueed, Meng K. Ma +5
The interplay between different orders is of fundamental importance in physics. The spontaneous, symmetry-breaking charge order, responsible for the stripe or the nematic phase, ha…
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…