6 papers
Strain-Tuned Incommensurate Kekulé Spiral Order in Twisted Bilayer Graphene: a Quantum Many-Body Study
Cheng Huang, Yves H. Kwan, Maksim Ulybyshev +3
The understanding of quantum many-body states in twisted bilayer graphene at the magic angle has been greatly improved both in experiment and in theory. However, away from the exac…
Intervalley coherence and flavor polarization in three-valley moiré systems
Jeyong Park, Laura Classen, Mathias S. Scheurer
We investigate interaction-induced symmetry breaking in moiré superlattices created by twisting two identical materials where the electronic low-energy degrees of freedom reside i…
Quantum Geometric Origin of the Intrinsic Nonlinear Hall Effect
Yannis Ulrich, Johannes Mitscherling, Laura Classen +1
We decompose the intrinsic second-order nonlinear Hall effect (NLHE) of a generic multiband system into its quantum-geometric contributions within a fully quantum-mechanical, proje…
Tuning correlated states of twisted mono-bilayer graphene with proximity-induced spin-orbit coupling
Jeyong Park, Mingdi Luo, Louk Rademaker +3
We study the correlated ground states of twisted mono-bilayer graphene with and without proximity-induced spin-orbit coupling (SOC) from a transition-metal dichalcogenide layer pla…
Van-Hove singularities and competing instabilities in an altermagnetic metal
Peng Rao, Johannes Knolle, Laura Classen
Van-Hove (VH) singularities in the single-particle band spectrum are important for interaction-driven quantum phases. Whereas VH points are usually spin-degenerate, in newly propos…
Spin and pair density waves in 2D altermagnetic metals
Nikolaos Parthenios, Pietro M. Bonetti, Rafael González-Hernández +3
Altermagnetism, a recently proposed and experimentally confirmed class of magnetic order, features collinear compensated magnetism with unconventional d-, g-, or i-wave spin order.…