771 citations · 2.6k across the 12 of their papers we have counts for
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Topological insulators in twisted transition metal dichalcogenide homobilayers
Fengcheng Wu, Timothy Lovorn, Emanuel Tutuc +2
We show that moiré bands of twisted homobilayers can be topologically nontrivial, and illustrate the tendency by studying valence band states in valleys of twisted bilayer…
Hubbard model physics in transition metal dichalcogenide moiré bands
Fengcheng Wu, Timothy Lovorn, Emanuel Tutuc +1
Flexible long period moir\' e superlattices form in two-dimensional van der Waals crystals containing layers that differ slightly in lattice constant or orientation. In this Letter…
Topologically Protected Helical States in Minimally Twisted Bilayer Graphene
Shengqiang Huang, Kyounghwan Kim, Dmitry K. Efimkin +6
In minimally twisted bilayer graphene, a moir{é} pattern consisting of AB and BA stacking regions separated by domain walls forms. These domain walls are predicted to support count…
Tunable Valley Populations in Hole-Doped Trilayer WSe
Hema C. P. Movva, Timothy Lovorn, Babak Fallahazad +7
We present a combined experimental and theoretical study of valley populations in the valence bands of trilayer WSe. Shubnikovde Haas oscillations show that trilayer holes p…
Theory of optical absorption by interlayer excitons in transition metal dichalcogenide heterobilayers
Fengcheng Wu, Timothy Lovorn, A. H. MacDonald
We present a theory of optical absorption by interlayer excitons in a heterobilayer formed from transition metal dichalcogenides. The theory accounts for the presence of small rela…
Topological Exciton Bands in Moiré Heterojunctions
Fengcheng Wu, Timothy Lovorn, A. H. MacDonald
Moiré patterns are common in Van der Waals heterostructures and can be used to apply periodic potentials to elementary excitations. We show that the optical absorption spectrum of…