Electronic transport, metal-insulator transition, and Wigner crystallization in transition metal dichalcogenide monolayers

Y Huang, S Das Sarma - Physical Review B, 2024‏ - APS
Two recent electronic transport experiments from Columbia University and Harvard
University have reported record high mobility and low channel densities in flux-grown …

Theory of generalized Landau levels and implication for non-Abelian states

Z Liu, B Mera, M Fujimoto, T Ozawa, J Wang - arxiv preprint arxiv …, 2024‏ - arxiv.org
Quantum geometry is a fundamental concept to characterize the local properties of quantum
states. It is recently demonstrated that saturating certain quantum geometric bounds allows a …

Unconventional discontinuous transitions in isospin systems

ZM Raines, LI Glazman, AV Chubukov - Physical review letters, 2024‏ - APS
We show that two-dimensional fermions with dispersion k 2 or k 4 undergo a first-order
Stoner transition to a fully spin-polarized state despite the fact that the spin susceptibility …

Signatures of correlated defects in an ultraclean Wigner crystal in the extreme quantum limit

PT Madathil, C Wang, SK Singh, A Gupta… - Physical review …, 2024‏ - APS
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) …

Unified Variational Approach Description of Ground-State Phases of the Two-Dimensional Electron Gas

C Smith, Y Chen, R Levy, Y Yang, MA Morales… - Physical Review Letters, 2024‏ - APS
The two-dimensional electron gas (2DEG) is a fundamental model, which is drawing
increasing interest because of recent advances in experimental and theoretical studies of …

Ferromagnetic semimetal and charge-density wave phases of interacting electrons in a honeycomb moiré potential

Y Yang, MA Morales, S Zhang - Physical Review Letters, 2024‏ - APS
The exploration of quantum phases in moiré systems has drawn intense experimental and
theoretical efforts. The realization of honeycomb symmetry has been a recent focus. The …

Collective dynamics and defect generation for Wigner crystal ratchets

C Reichhardt, CJO Reichhardt - Physical Review B, 2023‏ - APS
We consider a two-dimensional Wigner crystal coupled to a quasi-one-dimensional
asymmetric potential under ac or dc driving. As a function of electron density, substrate …

Nematic metal in a multivalley electron gas: Variational Monte Carlo analysis and application to AlAs

A Valenti, V Calvera, SA Kivelson, E Berg, SD Huber - Physical Review Letters, 2024‏ - APS
The two-dimensional electron gas is of fundamental importance in quantum many-body
physics. We study a minimal extension of this model with C 4 (as opposed to full rotational) …

Nonlinear dynamics, avalanches, and noise for driven Wigner crystals

C Reichhardt, CJO Reichhardt - Physical Review B, 2022‏ - APS
We consider the driven dynamics of Wigner crystals interacting with random disorder. Using
numerical simulations, we find a rich variety of transport phenomena as a function of charge …

Density-tuned effective metal-insulator transitions in two-dimensional semiconductor layers: Anderson localization or Wigner crystallization

S Ahn, S Das Sarma - Physical Review B, 2023‏ - APS
Electrons (or holes) confined in two-dimensional (2D) semiconductor layers have served as
model systems for studying disorder and interaction effects for almost 50 years. In particular …