Intrinsic Terahertz Plasmons and Magnetoplasmons in Large Scale Monolayer Graphene

被引：217

作者：

Crassee, I. ^{[1
]}

Orlita, M. ^{[2
,5
]}

Potemski, M. ^{[2
]}

Walter, A. L. ^{[7
,8
]}

Ostler, M. ^{[3
]}

Seyller, Th. ^{[3
]}

Gaponenko, I. ^{[1
]}

Chen, J. ^{[4
,6
,9
]}

Kuzmenko, A. B. ^{[1
]}

机构：

[1] Univ Geneva, Dept Phys Mat Condensee, CH-1211 Geneva, Switzerland

[2] CNRS UJFUPS INSA, Grenoble High Magnet Field Lab, F-38042 Grenoble 09, France

[3] Univ Erlangen Nurnberg, Lehrstuhl Tech Phys, D-91058 Erlangen, Germany

[4] CIC NanoGUNE Consolider, Donostia San Sebastian 20018, Spain

[5] Charles Univ Prague, Fac Math & Phys, CR-12116 Prague 2, Czech Republic

[6] Ctr Fis Mat CSIC UPV EHU, Donostia San Sebastian 20018, Spain

[7] EO Lawrence Berkeley Lab, Berkeley, CA 94720 USA

[8] Max Planck Gesell, Fritz Haber Inst, Dept Mol Phys, D-14195 Berlin, Germany

[9] DIPC, Donostia San Sebastian 20018, Spain

来源：

NANO LETTERS | 2012年 / 12卷 / 05期

基金：

瑞士国家科学基金会;

关键词：

Graphene; terahertz; magneto-optics; magnetoplasmons; Faraday rotation; 2-DIMENSIONAL ELECTRON-GAS; EDGE MAGNETOPLASMONS; SPECTROSCOPY;

D O I：

10.1021/nl300572y

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We show that in graphene epitaxially grown on SiC the Drude absorption is transformed into a strong terahertz plasmonic peak due to natural nanoscale inhomogeneities, such as substrate terraces and wrinkles. The excitation of the plasmon modifies dramatically the magneto-optical response and in particular the Faraday rotation. This makes graphene a unique playground for plasmon-controlled magneto-optical phenomena thanks to a cyclotron mass 2 orders of magnitude smaller than in conventional plasmonic materials such as noble metals.

引用

页码：2470 / 2474

页数：5

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