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Title: | Theoretical study of quasiparticle inelastic lifetimes as applied to aluminum |
Authors: | Nechaev, I. A.; Sklyadneva, Irina Yu.; Silkin, Viatcheslav M.; Echenique, Pedro M. CSIC; Chulkov, Eugene V. CSIC ORCID | Keywords: | Ab initio calculations Aluminium Electron-phonon interactions Exchange interactions (electron) Quasiparticles |
Issue Date: | 11-Aug-2008 | Publisher: | American Physical Society | Citation: | Physical Review B 78, 085113 (2008) | Abstract: | We 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. | Description: | 13 pages, 12 figures.-- PACS nrs.: 71.10.-w, 63.20.kd. | Publisher version (URL): | http://dx.doi.org/10.1103/PhysRevB.78.085113 | URI: | http://hdl.handle.net/10261/8500 | DOI: | 10.1103/PhysRevB.78.085113 | ISSN: | 1098-0121 |
Appears in Collections: | (CFM) Artículos |
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