Acoustically induced current flow in graphene

被引：100

作者：

Miseikis, V. ^{[1
]}

Cunningham, J. E. ^{[1
]}

Saeed, K. ^{[1
]}

O'Rorke, R. ^{[1
]}

Davies, A. G. ^{[1
]}

机构：

[1] Univ Leeds, Sch Elect & Elect Engn, Leeds LS2 9JT, W Yorkshire, England

来源：

APPLIED PHYSICS LETTERS | 2012年 / 100卷 / 13期

基金：

英国工程与自然科学研究理事会;

关键词：

QUANTUM DOTS; TRANSPORT; WAVES;

D O I：

10.1063/1.3697403

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate the directed control of charge carriers in graphene using the electric field that accompanies the propagation of surface acoustic waves (SAWs) on a piezoelectric surface. Graphene grown by chemical vapor deposition was transferred to the surface of lithium niobate, allowing its direct integration with interdigital transducers used for SAW generation and detection. Radio frequency (RF) signal applied to the transducers at their resonant frequency was found to generate a direct current flow by the transport of p-type charge carriers. The acoustically induced current scales linearly with the applied RF power and can be observed even in presence of a counter-flow current induced by an applied bias. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.3697403]

引用

页数：4

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