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Showing 1 to 5 of 5 for “"Shape Resonances"”.
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Photoelectrons and Recombining Electrons in Atomic and Molecular Systems
… structure, as well as evidence for low-energy shape resonances, of the pyrimidine-type nucleobases, thymine, uracil, and cytosine, is shown using high-resolution photoelectron spectroscopy. Chapters 7-8 discuss the use of elliptically polarized light for high-order harmonic generation as a …
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Effects of Anion Excited States on Photodetachment of Negative Ions
… and experimental data suggest the presence of shape resonances ([AgF<super>-</super>]* and [CuF<super>-</super>]*) which electronically autodetach to several vibrational levels of the ground state. In addition to autodetachment, photodissociation from an anion excited state is also studied. …
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Photofragmentation of carbonyl sulfide (Ocs) following core-shell photoexcitation and photoionization
… produced predominantly at the pi* and Rydberg resonances while dications are major products of dissociative channels above the thresholds. At the S 2p threshold, broad Franck-Condon regions observed for Rydberg excited states manifests an apparent change in molecular bond lengths upon the …
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Enhancement of superconductivity in Magnesium Diboride nano-structures
… $T_c = 62.4$ K and $T_c = 31.2$ K, showing that shape resonances induce both enhancement and suppression as the thickness changes. We have also seen that superconductivity can be in average enhanced or suppressed depending on the type of bands and sign of the effective masses. Finally, we have …
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Vibrational and anion photoelectron spectroscopy of transition metal clusters
… PADs reveals the existence of two core excited shape resonances and disentangles the hybridization of a key molecular orbital. In the study of Pt3-, the experiment is performed in the slow electron velocity map imaging (SEVI) mode to resolve the low-frequency vibrational structure, …