Revisiting the origin of satellites in core-level photoemission of transparent conducting oxides: The case of n -doped SnO2

Autor:	Matteo Guzzo, Jorge Berger, Jianqiang Sky Zhou, Jean-Pascal Rueff, Mark E. White, David J. Payne, Francesco Offi, Francesco Borgatti, Anna Regoutz, Giancarlo Panaccione, Christopher F McConville, Matteo Gatti, Joshua J. Kas, Oliver Bierwagen, Russell G. Egdell, James S. Speck, Denis Céolin
Rok vydání:	2018
Předmět:	Physics Free electron model Electronic correlation Doping Ab initio 02 engineering and technology Electron 021001 nanoscience & nanotechnology Plasma oscillation 01 natural sciences Spectral line 0103 physical sciences Atomic physics 010306 general physics 0210 nano-technology Fermi gas
Zdroj:	Physical Review B. 97
ISSN:	2469-9969 2469-9950
Popis:	The longstanding problem of interpretation of satellite structures in core-level photoemission spectra of metallic systems with a low density of conduction electrons is addressed using the specific example of Sb-doped SnO2. Comparison of ab initio many-body calculations with experimental hard x-ray photoemission spectra of the Sn 4d states shows that strong satellites are produced by coupling of the Sn core hole to the plasma oscillations of the free electrons introduced by doping. Within the same theoretical framework, spectral changes of the valence band spectra are also related to dynamical screening effects. These results demonstrate that, for the interpretation of electron correlation features in the core-level photoelectron spectra of such narrow-band materials, going beyond the homogeneous electron gas electron-plasmon coupling model is essential.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::68f22b88dd5d8eedcd83f37bfa6d8c4f https://doi.org/10.1103/physrevb.97.155102 Zobrazit plný text záznamu