http://www.cnr.it/ontology/cnr/individuo/prodotto/ID192079

Double-layer graphene and topological insulator thin-film plasmons (Articolo in rivista)

Type

Label

Double-layer graphene and topological insulator thin-film plasmons (Articolo in rivista) (literal)

Anno

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

Alternative label

R.E.V. Profumo, R. Asgari, M. Polini, A.H. MacDonald (2012)
Double-layer graphene and topological insulator thin-film plasmons
in Physical review. B, Condensed matter and materials physics
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Pagina inizio

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

Rivista

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

Dipartimento di Fisica dell'Università di Pisa and NEST, Istituto Nanoscienze-CNR, I-56127 Pisa, Italy School of Physics, Institute for Research in Fundamental Sciences (IPM), Tehran 19395-5531, Iran NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, I-56126 Pisa, Italy Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA (literal)

Titolo

Abstract

We present numerical and analytical results for the optical and acoustic plasmon collective modes of coupled massless-Dirac two-dimensional electron systems. Our results apply to topological insulator (TI) thin films and to two graphene sheets separated by a thin dielectric barrier layer. We find that, because of strong bulk dielectric screening, TI acoustic modes are locked to the top of the particle-hole continuum and, therefore, probably unobservable. (literal)

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