Photoconductivite et photoemission de diamant(s) sous irradiation XUV femtoseconde

Simple item page
dc.creatorPetite, Guillaume
dc.creatorGaudin, Jerome
dc.creatorGeoffroy, Ghita
dc.creatorGuizard, Stephane
dc.creatorEsnouf, Stephane
dc.creatorOlevano, Valerio
dc.creatorKlimentov, Serguei M.
dc.creatorPivovarov, Pavel A.
dc.creatorGarnov, Serguei V.
dc.creatorCarre, Bertrand
dc.creatorMartin, Patrick
dc.creatorBelsky, Andrei
dc.date2004-07-15
dc.date.accessioned2026-07-07T06:24:02Z
dc.date.available2026-07-07T06:24:02Z
dc.descriptionWe report a study of the photoconductivity (PC) induced in different types of diamonds (type IIa single crystals and CVD) by femtosecond XUV pulses (high order harmonics - up to 19th - of a titanium doped laser). We also reprot UPS spectras obtained with harmonics 13 to 29. Depending on the harmonic's order, the PC signal first increases (orders 9 to 13) and then decreases. If the increase is easily interpreted as resulting from a carrier multiplication process, the further decrease has not yet received an explanation. The UPS measurements also suggest a strong effect of the plasmon relaxation on the carrier multiplication process. Finally, we performed a preliminary GW ab-initio calculation of the carriers lifetime, acounting for electron-electron interactions. In the near-bandgap region, it behaves approximatively according to the Fermi-liquid model, from which it strongly departs at higher energies, which is attributed to band-structure effects and to plasmon excitations.
dc.descriptionProceedings "UVX 2004", St Etienne, 7-11 juin 2004
dc.identifierhttps://arxiv.org/abs/cond-mat/0407402
dc.identifierhttp://arxiv.org/abs/cond-mat/0407402
dc.identifierJournal de Physique IV Colloque 127 (2005) 219
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/96413
dc.subjectMaterials Science
dc.titlePhotoconductivite et photoemission de diamant(s) sous irradiation XUV femtoseconde
dc.typetext

Files

Collections

arXiv