Two dimensional materials not only can be constructed into artificial vertical heterostructures and superlattices by introducing an arbitrary angle of rotation between two adjacent layers, such as in a bilayer graphene or transition metal dichalcogenides, a moiré superlattice with in-plane periodicity featuring a much larger supercell can be formed.
The new periodic potential associated with the moire´ pattern modifies the original band structure and electron transport behaviors, leading to many fascinating new properties, including mott insulating state and unconventional superconductivity. It also gives rise to a burgeoning field called twistronics, which has quickly become the holy grail in condensed matter physics. In this work, we fabricated a twisted WSe2 Van der Pauw dual-gate device. The low temperature transport measurements indicate some anomalous phenomena comparing with the untwisted WSe2 back gate device.
About the presenter
Kaijian Xing works as a Research Fellow in CI Michael Fuhrer‘s group. His research focuses on transport studies on atomic thin materials.
This work fits the FLEET Research Theme 1, Topological Materials and FLEET Enabling Technology A, Atomically Thin Materials