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Título

Theoretical study of quasiparticle inelastic lifetimes as applied to aluminum

AutorNechaev, I. A.; Sklyadneva, I. Yu.; Silkin, Viatcheslav M.; Echenique, Pedro M. ; Chulkov, Eugene V.
Palabras claveAb initio calculations
Aluminium
Electron-phonon interactions
Exchange interactions (electron)
Quasiparticles
Fecha de publicación11-ago-2008
EditorAmerican Physical Society
CitaciónPhysical Review B 78, 085113 (2008)
ResumenWe present a comparative analysis of different microscopic approaches to quasiparticle properties in metals. Aluminum is chosen as an application object, since it exhibits characteristics many of which are well-described in the jellium model. Within this model, we consider how different levels of physical elaboration of the electron-electron interaction affect the imaginary part of the quasiparticle self-energy and the quasiparticle renormalization constant. Also, we present ab initio calculations of the quasiparticle lifetime in crystalline aluminum with the use of both the linear muffin-tin orbital method and the plane-wave pseudopotential theory. To complete the picture of inelastic scattering effects in aluminum, we report first-principles calculations on electron-phonon interaction and on the phonon mediated contribution to the lifetime. The total inelastic lifetime broadening is compared with experimental data known from the literature.
Descripción13 pages, 12 figures.-- PACS nrs.: 71.10.-w, 63.20.kd.
Versión del editorhttp://dx.doi.org/10.1103/PhysRevB.78.085113
URIhttp://hdl.handle.net/10261/8500
DOI10.1103/PhysRevB.78.085113
ISSN1098-0121
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