4 papers
Chiral electronic network within skyrmionic lattice on topological insulator surfaces
Matteo Wilczak, Dmitry K. Efimkin, Victor Gurarie
We consider a proximity effect between Dirac surface states of a topological insulator and the skyrmion phase of an insulating magnet. A single skyrmion results in the surface stat…
Theory of Band Gap Reduction Due to Conduction Electrons in 2D TMDs: Imaginary Frequency Formalism
Jack N. Engdahl, Harley D. Scammell, Dmitry K. Efimkin +1
Two Dimensional (2D) Transition Metal Dichalcogenides (TMDs) possess a large direct band gap which has been experimentally observed to shrink with increasing charge carrier density…
Valley-mediated singlet- and triplet-polaron interactions and quantum dynamics in a doped WSe monolayer
Yue Ni, Di Huang, Danfu Liang +11
In doped transition metal dichalcogenides, optically created excitons (bound electron-hole pairs) can strongly interact with a Fermi sea of electrons to form Fermi polaron quasipar…
Rydberg Exciton-Polaritons in a Magnetic Field
Emma Laird, Francesca M. Marchetti, Dmitry K. Efimkin +2
We theoretically investigate exciton-polaritons in a two-dimensional (2D) semiconductor heterostructure, where a static magnetic field is applied perpendicular to the plane. To exp…