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Kinks in the σ Band...
Kinks in the σ Band of Graphene Induced by Electron-Phonon Coupling
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- Mazzola, Federico (författare)
- Norwegian University of Science and Technology NTNU, Norway
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- Wells, Justin W. (författare)
- Norwegian University of Science and Technology NTNU, Norway
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- Yakimova, Rositsa (författare)
- Linköpings universitet,Halvledarmaterial,Tekniska högskolan
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- Ulstrup, Soren (författare)
- Aarhus University, Denmark
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- Miwa, Jill A. (författare)
- Aarhus University, Denmark
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- Balog, Richard (författare)
- Aarhus University, Denmark
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- Bianchi, Marco (författare)
- Aarhus University, Denmark
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- Leandersson, Mats (författare)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory,Lund University, Sweden
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- Adell, Johan (författare)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory,Lund University, Sweden
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- Hofmann, Philip (författare)
- Aarhus University, Denmark
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- Thiagarajan, Balasubramanian (författare)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory,Lund University, Sweden
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(creator_code:org_t)
- American Physical Society, 2013
- 2013
- Engelska.
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Ingår i: Physical Review Letters. - : American Physical Society. - 0031-9007 .- 1079-7114. ; 111:21, s. 216806-
- Relaterad länk:
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https://liu.diva-por... (primary) (Raw object)
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http://dx.doi.org/10...
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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
- Angle-resolved photoemission spectroscopy reveals pronounced kinks in the dispersion of the σ band of graphene. Such kinks are usually caused by the combination of a strong electron-boson interaction and the cutoff in the Fermi-Dirac distribution. They are therefore not expected for the σ band of graphene that has a binding energy of more than ≈3.5 eV. We argue that the observed kinks are indeed caused by the electron-phonon interaction, but the role of the Fermi-Dirac distribution cutoff is assumed by a cutoff in the density of σ states. The existence of the effect suggests a very weak coupling of holes in the σ band not only to the π electrons of graphene but also to the substrate electronic states. This is confirmed by the presence of such kinks for graphene on several different substrates that all show a strong coupling constant of λ≈1.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
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- TECHNOLOGY
- TEKNIKVETENSKAP
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Mazzola, Federic ...
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Wells, Justin W.
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Yakimova, Rosits ...
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Ulstrup, Soren
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Miwa, Jill A.
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Balog, Richard
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visa fler...
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Bianchi, Marco
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Leandersson, Mat ...
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Adell, Johan
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Hofmann, Philip
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Thiagarajan, Bal ...
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- NATURVETENSKAP
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Physical Review ...
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Linköpings universitet
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Lunds universitet