Abstract
The electron excitation spectra of the Li-intercalated graphene () are obtained using a high-accuracy ab initio density function theory calculation within the random phase approximation. The low-energy parts of the spectra are analyzed to predict the existence of two quasi-two-dimensional collective modes: a Dirac plasmon similar to the one in the doped graphene but significantly stronger, and an acoustic plasmon.
- Received 7 December 2016
DOI:https://doi.org/10.1103/PhysRevB.95.201408
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