Low-frequency Raman scattering in WSe${}_2$-MoSe${}_2$ heterobilayers: Evidence for atomic reconstruction

Johannes Holler, Sebastian Meier, Michael Kempf +5

We investigate WSe${}_2$-MoSe${}_2$ heterobilayers with different twist angles $\theta \pm \delta$ between the two layers, by low-frequency Raman scattering. In sufficiently aligned samples with…