Projection operator approach to lifetimes of electrons in metals

DC FieldValueLanguage
dc.contributor.authorKadiroglu, Mehmet
dc.contributor.authorGemmer, Jochen
dc.date.accessioned2021-12-23T15:59:45Z-
dc.date.available2021-12-23T15:59:45Z-
dc.date.issued2009
dc.identifier.issn24699950
dc.identifier.urihttps://osnascholar.ub.uni-osnabrueck.de/handle/unios/4122-
dc.description.abstractWe present an alternative approach to the calculation of the lifetime of a single excited electron (hole) which interacts with the Fermi sea of electrons in a metal. The metal is modeled on the level of a Hamilton operator comprising a pertinent dispersion relation and scattering term. To determine the full relaxation dynamics we employ an adequate implementation of the time-convolutionless projection operator method. This yields an analytic expression for the decay rate which allows for an intuitive interpretation in terms of scattering events. It may furthermore be efficiently evaluated by means of a Monte Carlo integration scheme. As an example we investigate aluminum using, just for simplicity, a jellium-type model. This way we obtain data which are directly comparable to results from a self-energy formalism. Our approach applies to arbitrary temperatures.
dc.description.sponsorshipDeutsche ForschungsgemeinschaftGerman Research Foundation (DFG); Graduate College 695 ``Nonlinearities of optical Materials''; We thank K. B rwinkel and M. Rohlfing for fruitful discussions. Financial support by the Deutsche Forschungsgemeinschaft and the Graduate College 695 ``Nonlinearities of optical Materials'' are gratefully acknowledged.
dc.language.isoen
dc.publisherAMER PHYSICAL SOC
dc.relation.ispartofPHYSICAL REVIEW B
dc.subjectaluminium
dc.subjectALUMINUM
dc.subjectdispersion relations
dc.subjectDYNAMICS
dc.subjectelectron relaxation time
dc.subjectEXCITATIONS
dc.subjectEXCITED ELECTRONS
dc.subjectFermi level
dc.subjectGAS
dc.subjectHOT-ELECTRONS
dc.subjectINELASTIC LIFETIMES
dc.subjectMaterials Science
dc.subjectMaterials Science, Multidisciplinary
dc.subjectmathematical operators
dc.subjectMonte Carlo methods
dc.subjectPhysics
dc.subjectPhysics, Applied
dc.subjectPhysics, Condensed Matter
dc.subjectSURFACES
dc.titleProjection operator approach to lifetimes of electrons in metals
dc.typejournal article
dc.identifier.doi10.1103/PhysRevB.79.134301
dc.identifier.isiISI:000265942800058
dc.description.volume79
dc.description.issue13
dc.identifier.eissn24699969
dc.publisher.placeONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
dcterms.isPartOf.abbreviationPhys. Rev. B
dcterms.oaStatusGreen Submitted
crisitem.author.netidGeJo743-
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