82 citations · 86 across the 2 of their papers we have counts for
9 papers
Hybrid dark excitons in monolayer
Hong Liu, Anny Pau, Dmitry K. Efimkin
Transition metal dichalcogenides have a rich exciton landscape consisting of a variety of bright and dark excitonic states. We consider the lowest-energy dark states in $\hbox{MoS}…
Topological spin-plasma waves
Dmitry K. Efimkin, Mehdi Kargarian
The surface of a topological insulator hosts Dirac electronic states with the spin-momentum locking, which constrains spin orientation perpendicular to electron momentum. As a resu…
Electron-exciton interactions in the exciton-polaron problem
Dmitry K. Efimkin, Emma K. Laird, Jesper Levinsen +2
Recently, it has been demonstrated that the absorption of moderately doped two-dimensional semiconductors can be described in terms of exciton-polarons. In this scenario, attractiv…
Anomalous drag in electron-hole condensates with granulated order
Hong Liu, Allan H. MacDonald, Dmitry K. Efimkin
We explain the strong interlayer drag resistance observed at low temperatures in bilayer electron-hole systems in terms of an interplay between local electron-hole-pair condensatio…
Tunneling and Fluctuating Electron-Hole Cooper Pairs in Double Bilayer Graphene
Dmitry K. Efimkin, G. William Burg, Emanuel Tutuc +1
A strong low-temperature enhancement of the tunneling conductance between graphene bilayers has been reported recently, and interpreted as a signature of equilibrium electron-hole…
Tunneling density of states, correlation energy, and spin polarization in the fractional quantum Hall regime
Gaurav Chaudhary, Dmitry K. Efimkin, Allan H. MacDonald
We derive exact sum-rules that relate the tunneling density of states (TDOS) of spinful electrons in the fractional quantum Hall (FQH) regime to the spin-dependent many body ground…