4 papers
Two-Body Solution and Instabilities along Streda Lines in Moire Flat Bands
Guopeng Xu, Chunli Huang
Moire minibands in twisted homobilayer semiconductors can, under suitable approximations, be modeled as a pair of Landau levels with opposite Chern numbers. This provides a minimal…
Localized Excitons and Landau-Level Mixing in Time-Reversal Symmetric Pairs of Chern Bands
Guopeng Xu, Nemin Wei, Inti Sodemann Villadiego +1
We study Landau-level mixing in a time-reversal-symmetric Hamiltonian composed of two sets of Landau levels with opposite magnetic field, relevant to moiré minibands in twisted hom…
Influence of the Dirac Sea on Phase Transitions in Monolayer Graphene under Strong Magnetic Fields
Guopeng Xu, Chunli Huang
Recent scanning tunneling microscopy experiments have found Kekulé-Distorted (KD) ordering in graphene subjected to strong magnetic fields, a departure from the antiferromagnetic (…
Magnetism in the Dilute Electron Gas of Rhombohedral Multilayer Graphene
Tobias Wolf, Nemin Wei, Haoxin Zhou +1
Lightly-doped rhombohedral multilayer graphene has recently emerged as one of the most promising material platforms for exploring electronic phases driven by strong Coulomb interac…