6 papers · 1 filter
The ideal limit of rhombohedral graphene: Interaction-induced layer-skyrmion lattices and their collective excitations
Tixuan Tan, Patrick J. Ledwith, Trithep Devakul
We introduce an ideal limit of rhombohedral graphene multilayers. In this limit, we show analytically how short-range repulsion stabilizes a layer-pseudospin skyrmion lattice, whic…
Nonvolatile Switching of Magnetism via Gate-Induced Sliding in Tetralayer Graphene
Daniel Brandon, Tixuan Tan, Yiwen Ai +7
Interlayer sliding degrees of freedom often determine the physical properties of two-dimensional (2D) materials. In graphene, for instance, the metastable rhombohedral stacking arr…
Link between thermodynamic correlation signatures and superconductivity in twisted trilayer graphene
Jesse C. Hoke, Yifan Li, Yuwen Hu +6
Twisted graphene multilayers exhibit strong electronic correlations, which manifest in a range of experimental signatures. Yet how these signatures relate to each other and the mic…
Magic continuum in multi-moiré twisted trilayer graphene
Li-Qiao Xia, Aviram Uri, Jiaojie Yan +10
Moiré lattices provide a highly tunable platform for exploring the interplay between electronic correlations and band topology. Introducing a second moiré pattern extends this pa…
How pairing mechanism dictates topology in valley-polarized superconductors with Berry curvature
Julian May-Mann, Tobias Helbig, Trithep Devakul
We investigate how the pairing mechanism influences topological superconductivity in valley-polarized systems with Berry curvature. We demonstrate that short-range attractive inter…
Designing topology and fractionalization in narrow gap semiconductor films via electrostatic engineering
Tixuan Tan, Aidan P. Reddy, Liang Fu +1
We show that topological flat minibands can be engineered in a class of narrow gap semiconductor films using only an external electrostatic superlattice potential. We demonstrate t…