Attosecond transient absorption on Cu-poor CIGS reveals coherent A1g phonons in chalcopyrite and ordered vacancy compound phases, and 18.6 fs oscillations attributed to electronic quantum path interference between their conduction bands.
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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
Attosecond transient absorption on Cu-poor CIGS reveals coherent A1g phonons in chalcopyrite and ordered vacancy compound phases, and 18.6 fs oscillations attributed to electronic quantum path interference between their conduction bands.