Plasmons and the spectral function of graphene

By M. Polini, R. Asgari, G. Borghi, Y. Barlas, T. Pereg-Barnea, Allan H. MacDonald. 2007

199 citations recorded by the source corpus.

We report a theoretical study of the influence of electron-electron interactions on the one-particle Green's function of a doped graphene sheet based on the random-phase approximation and on graphene's massless Dirac equation continuum model. We find that states near the Dirac point interact strongly with plasmons with a characteristic frequency ${\ensuremath{\omega}}_{\mathrm{pl}}^{\ensuremath{\star}}$ that scales with the sheet's Fermi energy and depends on its interaction coupling constant ${\ensuremath{\alpha}}_{\mathrm{gr}}$, partially explaining prominent features of recent angle-resolved photoemission spectroscopy data.

Subfields: Atomic and Molecular Physics, and Optics, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/649fae6e22b63cec5a862b03bf064115b8dec7c8

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Atomic and Molecular Physics, and Optics

1. E. Rossi
2. E. Hwang
3. S. Adam
4. Feng Wang
5. D. Basov
6. Alessandra Lanzara
7. Yuanbo Zhang
8. M. Fogler

In Materials Chemistry

1. E. Rossi
2. E. Hwang
3. S. Adam
4. Feng Wang
5. D. Basov
6. M. Fogler
7. Alessandra Lanzara
8. Yuanbo Zhang

Citations in the corpus

• Colloquium: Graphene spectroscopy (2014, background): “Compared to Polini et al. (2008), for the same α Lischner et al. (2013) find a broader plasmaron peak at a smaller separation from the primary band, which appears to be in a better agreement with the experiments of Bostwick et al. (2010).”
• The formation of an energy gap in graphene on ruthenium by controlling the interface (2010, background): “Instead, it exhibits the appearance of a weak kink around ED, consistent with the influence of electron–plasmon coupling as reported for graphene on SiC [12, 35] and predicted for free-standing graphene [15, 16, 18].”
• Electronic properties of graphene in a strong magnetic field (2010, background): “This concentration is a particularity of graphene due to the electrons’ chirality (Polini et al., 2008).”
• Electronic transport in two-dimensional graphene (2010, methodology): “The break-up of the density landscape in electron-hole puddles as predicted in (Adam et al., 2007; Hwang et al., 2007a) and shown by the DFTLDA (Polini et al., 2008b) and TFD theory (Rossi and Das Sarma, 2008) is clearly visible.”