5 papers
Half-quantized anomalous Hall conductance in topological insulator/ferromagnet van der Waals heterostructures
Shahid Sattar, Roman Stepanov, Alexander Tyner +3
The half-quantized anomalous Hall conductance (AHC) in topological materials is a condensed matter physics realization of the parity anomaly of (2+1) quantum field theory and an im…
Charge-ordered states in twisted MoTe
Sparsh Mishra, Tobias M. R. Wolf, Allan H. MacDonald
We analyze interaction-driven charge-density-wave (CDW) states in the spin-valley polarized first valence miniband of twisted MoTe (tMoTe) using an adiabatic mapping from t…
Topological excitonic insulators in electron bilayers modulated by twisted hBN
Yongxin Zeng, Allan H. MacDonald, Nemin Wei
Equilibrium interlayer exciton condensation is common in bilayer quantum Hall systems and is characterized by spontaneous phase coherence between isolated layers. It has been predi…
Quantum Phases in Twisted Homobilayer Transition Metal Dichalcogenides
Bohao Li, Wen-Xuan Qiu, Fengcheng Wu +1
Twisted homobilayer transition metal dichalcogenides - specifically twisted bilayer MoTe and twisted bilayer WSe - have recently emerged as a versatile platform for strongl…
Theory of magnetoroton bands in moiré materials
Bishoy M. Kousa, Nicolás Morales-Durán, Tobias M. R. Wolf +2
The recent realization of Hofstadter spectra and fractional Chern insulators in moiré materials has introduced a new ingredient, a periodic lattice potential, to the study of quant…