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Electronic thermal conductivity measurements in intrinsic graphene

Title:

Electronic thermal conductivity measurements in intrinsic graphene

Yiğen, S., Tayari, V., Island, J. O., Porter, J. M. and Champagne, A. R. (2013) Electronic thermal conductivity measurements in intrinsic graphene. Physical Review B, 87 (24). ISSN 1098-0121

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Official URL: http://dx.doi.org/10.1103/PhysRevB.87.241411

Abstract

The electronic thermal conductivity of graphene and two-dimensional Dirac materials is of fundamental interest and can play an important role in the performance of nanoscale devices.We report the electronic thermal conductivity Ke in suspended graphene in the nearly intrinsic regime over a temperature range of 20–300 K. We present a method to extract Ke using two-point dc electron transport at low bias voltages, where the electron and lattice temperatures are decoupled. We find Ke ranging from 0.5 to 11 W/m K over the studied temperature range. The data are consistent with a model in which heat is carried by quasiparticles with the same mean free path and velocity as graphene’s charge carriers.

Divisions:Concordia University > Faculty of Arts and Science > Physics
Item Type:Article
Refereed:Yes
Authors:Yiğen, S. and Tayari, V. and Island, J. O. and Porter, J. M. and Champagne, A. R.
Journal or Publication:Physical Review B
Date:2013
Digital Object Identifier (DOI):10.1103/PhysRevB.87.241411
ID Code:978291
Deposited By: DAVID MACAULAY
Deposited On:27 Feb 2014 17:27
Last Modified:18 Jan 2018 17:46
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