Twist angle dependent interlayer transfer of valley polarization from excitons to free charge carriers in WSe${}_2$/MoSe${}_2$ 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${}_2$/MoSe${}_2$ heterobi…