Journal
PHYSICAL REVIEW B
Volume 88, Issue 19, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.88.195405
Keywords
-
Funding
- BES [DE-FG02-05ER46203]
- EC [CNECT-ICT-604391]
- Italian Ministry of Education, University, and Research (MIUR) [RBFR10M5BT]
Ask authors/readers for more resources
We calculate the intrinsic lifetime of a Dirac plasmon in a doped graphene sheet by analyzing the role of electron-electron interactions beyond the random phase approximation. The damping mechanism at work is intrinsic since it operates also in disorder-free samples and in the absence of lattice vibrations. We demonstrate that graphene's sublattice-pseudospin degree of freedom suppresses intrinsic plasmon losses with respect to those that occur in ordinary two-dimensional electron liquids. As a byproduct, we are able to present a microscopic calculation of the homogeneous dynamical conductivity at energies below the single-particle absorption threshold.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available