A detailed ab initio study of the electronic properties of the Al-doped MgB2 compound is reported. The E-2g phonon frequency is calculated as a function of the Al content within linear-response theory. Our results show that a strong phonon frequency renormalization starts at 25% Al content, explaining the phonon frequency behavior as a function of Al doping reported by different experiments.
Titolo: | Phonon and electron-phonon renormalization in Al-doped MgB2 |
Autori: | |
Data di pubblicazione: | 2003 |
Rivista: | |
Abstract: | A detailed ab initio study of the electronic properties of the Al-doped MgB2 compound is reported. The E-2g phonon frequency is calculated as a function of the Al content within linear-response theory. Our results show that a strong phonon frequency renormalization starts at 25% Al content, explaining the phonon frequency behavior as a function of Al doping reported by different experiments. |
Handle: | http://hdl.handle.net/11697/5042 |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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