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Electronic structure of doped hydrocarbon superconductors

AuthorsRoth, Friedrich; Mahns, Benjamin; Gatti, Matteo; Cudazzo, Pierluigi; Büchner, Bernd; Rubio, Angel ; Knupfer, M.
Issue Date2012
CitationDPG Spring Meeting (2012)
AbstractWe performed electron energy-loss spectroscopy studies in transmission in order to get a deeper insight into the electronic structure of the potassium intercalated recently discovered aromatic hydrocarbon superconductors, such as picene or coronene. A comparison of the loss function of the undoped and doped compound shows the appearance of a new peak in the case of picene and several new peaks in the case of coronene in the optical gap. For picene we find a remarkable negative plasmon dispersion and a dramatic increase for the value of the background dielectric constant upon doping.
DescriptionTrabajo presentado al: "Deutsche Physikalische Gesellschaft Spring Meeting" celebrado en Berlín (Alemania) del 25 al 30 de Marzo de 2012.
Publisher version (URL)http://www.dpg-verhandlungen.de/year/2012/conference/berlin/parts?lang=de
Appears in Collections:(CFM) Comunicaciones congresos
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