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Title: Electronic thermal conductivity of suspended graphene

Abstract

Electronic thermal conductivity, κ{sub e}, of suspended graphene is studied for 20K<400K. Electrons are assumed to be scattered by impurities, surface roughness, vacancies, inelastic optical phonons and in-plane and flexural acoustic phonons. Numerical calculations of κ{sub e}, as a function of temperature, are presented. At lower temperatures, κ{sub e}, is found to be determined mainly by vacancy (T<50K) and impurity (T<150K) scatterings. Flexural phonons influence κ{sub e} for T > 100K, becoming dominant for T > 250K. Good agreement with recent experimental data is obtained.

Authors:
;  [1]
  1. Department of Physics, Karnatak University, Dharwad-580003, Karnataka (India)
Publication Date:
OSTI Identifier:
22269594
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1591; Journal Issue: 1; Conference: 58. DAE solid state physics symposium 2013, Patiala, Punjab (India), 17-21 Dec 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 77 NANOSCIENCE AND NANOTECHNOLOGY; GRAPHENE; IMPURITIES; PHONONS; SCATTERING; SURFACES; TEMPERATURE DEPENDENCE; THERMAL CONDUCTIVITY

Citation Formats

Begum, K. Rizwana, E-mail: n-s-sankeshwar@hotmail.com, and Sankeshwar, N. S., E-mail: n-s-sankeshwar@hotmail.com. Electronic thermal conductivity of suspended graphene. United States: N. p., 2014. Web. doi:10.1063/1.4872935.
Begum, K. Rizwana, E-mail: n-s-sankeshwar@hotmail.com, & Sankeshwar, N. S., E-mail: n-s-sankeshwar@hotmail.com. Electronic thermal conductivity of suspended graphene. United States. https://doi.org/10.1063/1.4872935
Begum, K. Rizwana, E-mail: n-s-sankeshwar@hotmail.com, and Sankeshwar, N. S., E-mail: n-s-sankeshwar@hotmail.com. 2014. "Electronic thermal conductivity of suspended graphene". United States. https://doi.org/10.1063/1.4872935.
@article{osti_22269594,
title = {Electronic thermal conductivity of suspended graphene},
author = {Begum, K. Rizwana, E-mail: n-s-sankeshwar@hotmail.com and Sankeshwar, N. S., E-mail: n-s-sankeshwar@hotmail.com},
abstractNote = {Electronic thermal conductivity, κ{sub e}, of suspended graphene is studied for 20K<400K. Electrons are assumed to be scattered by impurities, surface roughness, vacancies, inelastic optical phonons and in-plane and flexural acoustic phonons. Numerical calculations of κ{sub e}, as a function of temperature, are presented. At lower temperatures, κ{sub e}, is found to be determined mainly by vacancy (T<50K) and impurity (T<150K) scatterings. Flexural phonons influence κ{sub e} for T > 100K, becoming dominant for T > 250K. Good agreement with recent experimental data is obtained.},
doi = {10.1063/1.4872935},
url = {https://www.osti.gov/biblio/22269594}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1591,
place = {United States},
year = {Thu Apr 24 00:00:00 EDT 2014},
month = {Thu Apr 24 00:00:00 EDT 2014}
}