271 citations · 1.4k across the 40 of their papers we have counts for
40 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…
Excitons in Atomically Thin TMD in Electric and Magnetic Fields
Jack N. Engdahl, Harley D. Scammell, Dmitry K. Efimkin +1
The magnetic field dependence of photoabsorption provides direct insights into the band structure of semiconductors. It is perhaps surprising that there is a large discrepancy betw…
Giant resonant skew scattering of plasma waves in a two-dimensional electron gas
Cooper Finnigan, Dmitry K. Efimkin
Electron skew scattering by impurities is one of the major mechanisms behind the anomalous Hall effect in ferromagnetic nanostructures. It is particularly strong at the surface of…
Topological hybrid electron-hole Cooper pairing
Alexander Chansky, Dmitry K. Efimkin
We consider electron--hole Cooper pair condensation in a heterostructure formed by a topological insulator film and a quantum well. We argue that the helical nature of the Dirac el…