45 citations · 67 across the 4 of their papers we have counts for
4 papers
Twist angle dependent interlayer transfer of valley polarization from excitons to free charge carriers in WSe/MoSe heterobilayers
Frank Volmer, Manfred Ersfeld, Paulo E. Faria Junior +13
We identify an optical excitation mechanism that transfers a valley polarization from photo-excited electron-hole pairs to free charge carriers in twisted WSe/MoSe heterobi…
Valley lifetimes of conduction band electrons in monolayer WSe
Manfred Ersfeld, Frank Volmer, Lars Rathmann +10
One of the main tasks in the investigation of 2-dimensional transition metal dichalcogenides is the determination of valley lifetimes. In this work, we combine time-resolved Kerr r…
How the dynamic of photo-induced gate screening complicates the investigation of valley physics in 2D materials
F. Volmer, M. Ersfeld, L. Rathmann +6
An in-depth analysis of valley physics in 2D materials like transition metal dichalcogenides requires the measurement of many material properties as a function of Fermi level posit…
Unveiling valley lifetimes of free charge carriers in monolayer WSe
Manfred Ersfeld, Frank Volmer, Lars Rathmann +10
We report on nanosecond long, gate-dependent valley lifetimes of free charge carriers in monolayer WSe, unambiguously identified by the combination of time-resolved Kerr rotati…