Effects of screening on the optical absorption in graphene and in metallic monolayers
Name
Jablan-2014-Effects of screening.pdf
Size
675.5 KB
Format
Adobe PDF
Checksum (MD5)
015013589013e13814ed56e437d47a57
Author(s)
Jablan, Marinko
Buljan, Hrvoje
Soljacic, Marin
Date Issued
February 2014
Journal
Physical Review B
Publisher
American Physical Society
Citation
Jablan, Marinko, Marin Soljacic, and Hrvoje Buljan. “Effects of Screening on the Optical Absorption in Graphene and in Metallic Monolayers.” Phys. Rev. B 89, no. 8 (February 2014). © 2014 American Physical Society
Version
Final published version
Abstract
Screening is one of the fundamental concepts in solid-state physics. It has a great impact on the electronic properties of graphene, where huge mobilities were observed in spite of the large concentration of charged impurities. While static screening has successfully explained dc mobilities, screening properties can be significantly changed at infrared or optical frequencies. In this paper, we discuss the influence of dynamical screening on the optical absorption of graphene and other two-dimensional electron systems such as metallic monolayers. This research is motivated by recent experimental results that pointed out that graphene plasmon linewidths and optical scattering rates can be much larger than scattering rates determined by dc mobilities. Specifically, we discuss a process in which a photon incident on a graphene plane can excite a plasmon by scattering from an impurity, or a surface optical phonon of the substrate.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PhysRevB.89.085415
