Terahertz Frequency-Dependent Carrier Scattering Rate and Mobility of Monolayer and AA-Stacked Multilayer Graphene

Author

I-Tan Lin ; Jia-Ming Liu

Author_Institution

Dept. of Electr. Eng., Univ. of California, Los Angeles, Los Angeles, CA, USA

Volume

20

Issue

1

fYear

2014

fDate

Jan.-Feb. 2014

Firstpage

122

Lastpage

129

Abstract

We present the terahertz optical model for AA-stacked multilayer graphene and monolayer graphene considering various scattering mechanisms, such as the charged impurity scattering and surface polar optical phonon scattering. The ac/dc scattering rate and mobility of AA-stacked multilayer graphene are derived. We show that the mobility of AA-stacked multilayer graphene can be potentially higher than that of monolayer graphene if the sample has a large impurity density. We also show that the effective scattering rate is a function of frequency that cannot be captured by the simple Drude model.

Keywords

graphene; impurity scattering; light scattering; monolayers; multilayers; AA-stacked multilayer graphene mobility; C; ac-dc scattering rate; charged impurity scattering; frequency function; large impurity density; monolayer graphene; simple Drude model; surface polar optical phonon scattering; terahertz frequency-dependent carrier scattering mobility; terahertz frequency-dependent carrier scattering rate; terahertz optical model; Few-layer graphene; mobility; terahertz property;

fLanguage

English

Journal_Title

Selected Topics in Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

1077-260X

Type

jour

DOI

10.1109/JSTQE.2013.2263116

Filename

6521336