Coherent phonon motions and ordered vacancy compound mediated quantum path interference in Cu-poor CuIn${}_x$Ga${}_{(1-x)}$Se${}_2$ (CIGS) with attosecond transient absorption

Hugo Laurell, Jonah R. Adelman, Elizaveta Yakovleva +7

In this study, coherent phonon motion is observed in bandgap excited CuIn${}_x$Ga${}_{(1-x)}$Se${}_2$ (CIGS) utilizing extreme ultraviolet (XUV) attosecond transient absorption spectro…