40 citations · 176 across the 9 of their papers we have counts for
9 papers
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…
Composite Fermion Mass
K. A. Villegas Rosales, P. T. Madathil, Y. J. Chung +4
Composite fermions (CFs), exotic quasi-particles formed by pairing an electron and an even number of magnetic flux quanta emerge at high magnetic fields in an interacting electron…
Melting phase diagram of bubble phases in high Landau levels
K. A. Villegas, S. K. Singh, H. Deng +5
A low-disorder, two-dimensional electron system (2DES) subjected to a large perpendicular magnetic field and cooled to very low temperatures provides a rich platform for studies of…
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…
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…
Multivalley two-dimensional electron system in an AlAs quantum well with mobility exceeding cmVs
Yoon Jang Chung, K. A. Villegas Rosales, H. Deng +4
Degenerate conduction-band minima, or `valleys', in materials such as Si, AlAs, graphene, and MoS allow them to host two-dimensional electron systems (2DESs) that can access a…
Transference of Fermi Contour Anisotropy to Composite Fermions
Insun Jo, K. A. Villegas Rosales, M. A. Mueed +6
There has been a surge of recent interest in the role of anisotropy in interaction-induced phenomena in two-dimensional (2D) charged carrier systems. A fundamental question is how…