4 papers
Collective Spin Excitations in Correlated Moiré Chern Ferromagnets
Ming Xie, Sankar Das Sarma
Moiré-induced narrow electronic bands in transition metal dichalcogenide superlattices support many correlated quantum phases characterized by novel charge, flavor, and topologica…
Superconductivity in twisted transition metal dichalcogenide homobilayers
Jihang Zhu, Yang-Zhi Chou, Ming Xie +1
For the first time, robust superconductivity has been independently observed in twisted WSe bilayers by two separate groups [Y. Xia et al., arXiv:2405.14784; Y. Guo et al., arX…
Thermal crossover from a Chern insulator to a fractional Chern insulator in pentalayer graphene
Sankar Das Sarma, Ming Xie
By theoretically analyzing the recent temperature dependent transport data in pentalayer graphene [Lu et al., arXiv:2408.10203], we establish that the experimentally observed trans…
Long-lived Topological Flatband Excitons in Semiconductor Moiré Heterostructures: a Bosonic Kane-Mele Model Platform
Ming Xie, Mohammad Hafezi, Sankar Das Sarma
Moiré superlattices based on two-dimensional transition metal dichalcogenides (TMDs) have emerged as a highly versatile and fruitful platform for exploring correlated topological…