Effect of Temperature and Doping on Plasmon Excitations for an Encapsulated Double‐Layer Graphene Heterostructure

Effect of Temperature and Doping on Plasmon Excitations for an Encapsulated Double‐Layer... IntroductionMany researchers have been devoting a great deal of effort to exploit the unique transport and optical properties of graphene. In particular, an area of much interest to both experimentalists and theoreticians has been the study of plasmon excitations under various conditions of temperature and doping concentrations. There have been many recent works focused on the study of these plasmon modes in graphene when it is free standing, lying on a substrate, or encapsulated by two conducting materials. In this paper, we investigate the way in which the plasmon mode excitations for a pair of graphene layers are affected by encapsulating conductors which are coupled nonlocally to the two‐dimensional (2D) layers.The unusual properties of free‐standing graphene may be attributed to Bloch states in the corners of the hexagonal Brillouin zone of this 2D honeycomb crystal lattice. For example, the Dirac fermions arising from this energy band structure lead to strongly enhanced and confined local fields through dipole–dipole coupling. But, recently, novel properties have been predicted when graphene electrically interacts with a nearby metallic substrate separated by a thin insulator. The graphene‐insulator‐metal plasmons have exhibited both a linear dispersion mode (a so‐called acoustic plasmon) in the terahertz (THz) spectral regime http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physica Status Solidi (B) Basic Solid State Physics Wiley

Effect of Temperature and Doping on Plasmon Excitations for an Encapsulated Double‐Layer Graphene Heterostructure

Loading next page...
 
/lp/wiley/effect-of-temperature-and-doping-on-plasmon-excitations-for-an-R00JRyrfQw
Publisher
Wiley
Copyright
© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
ISSN
0370-1972
eISSN
1521-3951
D.O.I.
10.1002/pssb.201700342
Publisher site
See Article on Publisher Site

Abstract

IntroductionMany researchers have been devoting a great deal of effort to exploit the unique transport and optical properties of graphene. In particular, an area of much interest to both experimentalists and theoreticians has been the study of plasmon excitations under various conditions of temperature and doping concentrations. There have been many recent works focused on the study of these plasmon modes in graphene when it is free standing, lying on a substrate, or encapsulated by two conducting materials. In this paper, we investigate the way in which the plasmon mode excitations for a pair of graphene layers are affected by encapsulating conductors which are coupled nonlocally to the two‐dimensional (2D) layers.The unusual properties of free‐standing graphene may be attributed to Bloch states in the corners of the hexagonal Brillouin zone of this 2D honeycomb crystal lattice. For example, the Dirac fermions arising from this energy band structure lead to strongly enhanced and confined local fields through dipole–dipole coupling. But, recently, novel properties have been predicted when graphene electrically interacts with a nearby metallic substrate separated by a thin insulator. The graphene‐insulator‐metal plasmons have exhibited both a linear dispersion mode (a so‐called acoustic plasmon) in the terahertz (THz) spectral regime

Journal

Physica Status Solidi (B) Basic Solid State PhysicsWiley

Published: Jan 1, 2018

Keywords: ; ;

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off