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Titolo:
Semiclassical approach to metal cluster dynamics
Autore:
Giglio, E; Reinhard, PG; Suraud, E;
Indirizzi:
Univ Toulouse 3, Phys Quant Lab, F-31062 Toulouse, France Univ Toulouse 3Toulouse France F-31062 nt Lab, F-31062 Toulouse, France Univ Erlangen Nurnberg, Inst Theoret Phys, D-91058 Erlangen, Germany Univ Erlangen Nurnberg Erlangen Germany D-91058 -91058 Erlangen, Germany Univ Washington, Inst Nucl Theory, Seattle, WA 98195 USA Univ Washington Seattle WA USA 98195 t Nucl Theory, Seattle, WA 98195 USA
Titolo Testata:
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
fascicolo: 9, volume: 33, anno: 2000,
pagine: L333 - L340
SICI:
0953-4075(20000514)33:9<L333:SATMCD>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
HEAVY-ION COLLISIONS; SODIUM CLUSTERS; VLASOV EQUATION; COULOMB-SYSTEMS; JELLIUM MODEL; RELAXATION; PHYSICS; PICTURE;
Tipo documento:
Letter
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
37
Recensione:
Indirizzi per estratti:
Indirizzo: Giglio, E Univ Toulouse 3, Phys Quant Lab, 118 Route Narbonne, F-31062 Toulouse, France Univ Toulouse 3 118 Route Narbonne Toulouse France F-31062 ance
Citazione:
E. Giglio et al., "Semiclassical approach to metal cluster dynamics", J PHYS B, 33(9), 2000, pp. L333-L340

Abstract

We show that semiclassical methods provide a valid description for the electronic and ionic dynamical response of metal clusters in the regime of high excitation energies. We consider real time dynamics for electrons at a Vlasov-LDA level and include dynamical correlations by an Uhling-Uhlenbeck collision term. Coupling to ionic motion is explicitly accounted for by meansof a pseudo potential. It is found that electron-electron collisions are more important than electron-ion collisions for determining the width of theplasmon response at high excitation energies. The coupling to true ionic motion yields non-adiabatic molecular dynamics which is validated on the picosecond time scale.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/09/20 alle ore 12:12:02