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Phonon-induced linewidths of graphene electronic states

Hellsing, Bo; Frederiksen, Thomas; Mazzola, Federico; Balasubramanian, Thiagarajan LU and Wells, Justin W. LU (2018) In Physical Review B 98(20).
Abstract

The linewidths of the π and σ bands originating from the electron-phonon coupling in graphene are analyzed based on model calculations and experimental angle-resolved photoemission spectroscopy (ARPES) data. We find evidence for crucial contributions to the lifetime broadening from interband scattering π→σ and σ→π, respectively, driven by the out-of-plane ZA acoustic phonons. The essential features of the calculated σ band linewidths are in agreement with recent published ARPES data [Mazzola, Phys. Rev. B 95, 075430 (2017)2469-995010.1103/PhysRevB.95.075430] and of the π band linewidth with ARPES data presented here.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review B
volume
98
issue
20
publisher
American Physical Society
external identifiers
  • scopus:85057833832
ISSN
2469-9950
DOI
10.1103/PhysRevB.98.205428
language
English
LU publication?
yes
id
ed2c384e-77f8-4d6a-9eb1-8c7b7d85cdd0
date added to LUP
2018-12-19 12:59:13
date last changed
2019-02-20 11:40:26
@article{ed2c384e-77f8-4d6a-9eb1-8c7b7d85cdd0,
  abstract     = {<p>The linewidths of the π and σ bands originating from the electron-phonon coupling in graphene are analyzed based on model calculations and experimental angle-resolved photoemission spectroscopy (ARPES) data. We find evidence for crucial contributions to the lifetime broadening from interband scattering π→σ and σ→π, respectively, driven by the out-of-plane ZA acoustic phonons. The essential features of the calculated σ band linewidths are in agreement with recent published ARPES data [Mazzola, Phys. Rev. B 95, 075430 (2017)2469-995010.1103/PhysRevB.95.075430] and of the π band linewidth with ARPES data presented here.</p>},
  articleno    = {205428},
  author       = {Hellsing, Bo and Frederiksen, Thomas and Mazzola, Federico and Balasubramanian, Thiagarajan and Wells, Justin W.},
  issn         = {2469-9950},
  language     = {eng},
  number       = {20},
  publisher    = {American Physical Society},
  series       = {Physical Review B},
  title        = {Phonon-induced linewidths of graphene electronic states},
  url          = {http://dx.doi.org/10.1103/PhysRevB.98.205428},
  volume       = {98},
  year         = {2018},
}