Hot-electron transport in graphene driven by intense terahertz fields

被引：10
|
作者：
Bao, W. S. [1 ]
Liu, S. Y. [1 ]
Lei, X. L. [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Dept Phys, Shanghai 200240, Peoples R China
来源：
PHYSICS LETTERS A | 2010年 / 374卷 / 10期
基金：
美国国家科学基金会;
关键词：
Graphene; Terahertz field; Nonlinear effect; CARBON; CONDUCTIVITY;
D O I：
10.1016/j.physleta.2009.12.076
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We investigate transport properties of graphene driven by intense terahertz (THz) fields, considering impurity, acoustic-phonon and optical phonon scatterings. The time evolutions of drift velocity and electron temperature are analyzed and the phase shift and distortion of drift velocity are demonstrated. We also examine the terahertz photoconductivity, finding that the suppression of linear dc mobility is greatly enhanced with decreasing frequency of the radiation. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：1266 / 1269
页数：4
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