Limits on Charge Carrier Mobility in Suspended Graphene Due to Flexural Phonons

Overview

Journal Phys Rev Lett

Publisher American Physical Society

Specialty Biophysics

Date 2011 Jan 15

PMID 21231692

Citations 21

Authors

Eduardo V Castro

H Ochoa

M I Katsnelson

R V Gorbachev

D C Elias

K S Novoselov

A K Geim

F Guinea

Affiliations

Soon will be listed here.

Abstract

The temperature dependence of the mobility in suspended graphene samples is investigated. In clean samples, flexural phonons become the leading scattering mechanism at temperature T≳10 K, and the resistivity increases quadratically with T. Flexural phonons limit the intrinsic mobility down to a few m(2)/V s at room T. Their effect can be eliminated by applying strain or placing graphene on a substrate.

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