Three-dimensional topological twistronics
Fengcheng Wu, Rui-Xing Zhang, Sankar Das Sarma
Abstract
This work studies three dimensional chiral twisted systems by developing a generalized Bloch band theory, which employs a nonsymmorphic symmetry and captures the moire pattern formed between neighboring layers. The theory predicts the emergence of type-I and type-II Weyl nodes, magic-angle Weyl physics as well as pseudo magnetic field in such systems.
Topics & Concepts
PhysicsTheoretical physicsSymmetry (geometry)Field (mathematics)Topology (electrical circuits)Work (physics)Symmetry groupMoiré patternQuantum mechanicsMagnetic fieldMathematicsType (biology)Group theoryChiral symmetryTopological Materials and PhenomenaQuantum Mechanics and Non-Hermitian PhysicsGraphene research and applications