6 papers
Nano-ARPES investigation of twisted bilayer tungsten disulfide
Giovanna Feraco, Oreste De Luca, Przemysław Przybysz +13
The diverse and intriguing phenomena observed in twisted bilayer systems, such as graphene and transition metal dichalcogenides, prompted new questions about the emergent effects t…
Flowering of Developable 2D Crystal Shapes in Closed, Fluid Membranes
Hao Wan, Geunwoong Jeon, Weiyue Xin +2
The morphologies of two-dimensional (2D) crystals, nucleated, grown, and integrated within 2D elastic fluids, for instance in giant vesicle membranes, are dictated by an interplay…
Monolithic thin-film chalcogenide-silicon tandem solar cells enabled by a diffusion barrier
Alireza Hajijafarassar, Filipe Martinho, Fredrik Stulen +12
Following the recent success of monolithically integrated Perovskite/Si tandem solar cells, great interest has been raised in searching for alternative wide bandgap top-cell materi…
Memory Effect in the Photoinduced Femtosecond Rotation of Magnetization in the Ferromagnetic Semiconductor GaMnAs
J. Wang, I. Cotoros, X. Liu +4
We report a femtosecond response in photoinduced magnetization rotation in the ferromagnetic semiconductor GaMnAs, which allows for detection of a four-state magnetic memory at the…
Correlation-Driven Charge Order at a Mott Insulator - Band Insulator Digital Interface
Rossitza Pentcheva, Warren E. Pickett
To study digital Mott insulator LaTiO3 and band insulator SrTiO3 interfaces, we apply correlated band theory (LDA+U) to (n,m) multilayers, 1<n,m<9. If the on-site repulsion on Ti i…
Testing for topological order in variational wavefunctions for Z(2) spin liquids
Arun Paramekanti, Mohit Randeria, Nandini Trivedi
We determine the conditions under which a spin-liquid Mott insulator |0> defined by a Gutzwiller projected BCS state at half-filling is Z(2) fractionalized. We construct a trial vi…