Heays, Alan; Lewis, Brenton; Gibson, Stephen; Malone, C.P.; Johnson, P V; Kanik, Isik; Khakoo, M.A.
The phenomenon whereby features associated with certain vibrational levels in molecular states of mixed electronic character disappear under specific scattering conditions in electron energy-loss spectra is investigated. In particular, using a combination of experimental measurements and coupled-channel calculations, anomalous vibrational intensities in the mixed valence-Rydberg 1Π u←X1Σg+ transition of N 2 are explained. A single parameter, i.e., the ratio of the generalized electronic...[Show more]
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