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Multiple Plasmon Sa...
Multiple Plasmon Satellites in Na and Al Spectral Functions from Ab Initio Cumulant Expansion
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- Aryasetiawan, F. (författare)
- Max-Planck-Institut für Festkörperforschung, Stuttgart, Federal Republic of Germany ; Department of Theoretical Physics, University of Lund, Sweden
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- Hedin, Lars (författare)
- Lund University,Lunds universitet,Matematisk fysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Mathematical Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Max-Planck-Institut für Festkörperforschung, Stuttgart, Federal Republic of Germany
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- Karlsson, Krister, 1961- (författare)
- Högskolan i Skövde,Institutionen för ingenjörsvetenskap
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(creator_code:org_t)
- 1996-09-09
- 1996
- Engelska.
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Ingår i: Physical Review Letters. - : American Physical Society. - 0031-9007 .- 1079-7114. ; 77:11, s. 2268-2271
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The valence photoemission spectra of alkali metals exhibit multiple plasmon satellite structure. The calculated spectral functions within the GW approximation show only one plasmon satellite at too large binding energy. In this Letter we use the cumulant expansion approach to obtain the spectral functions of Na and Al from ab initio calculations including the effects of band structure. The GW spectral functions are dramatically improved and the positions of the multiple plasmon satellites are in very good agreement with experiment while their intensities cannot be explained from intrinsic effects only.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
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