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Phonon thermal transport in strained and unstrained graphene from first principles

Lindsay, L., Li, Wu, Carrete, Jesús, Mingo, Natalio, Broido, D. A., Reinecke, T. L.·2014·Physical Review B

Abstract

A rigorous first principles Boltzmann-Peierls equation (BPE) for phonon transport approach is employed to examine the lattice thermal conductivity, ${\ensuremath{\kappa}}_{L}$, of strained and unstrained graphene. First principles calculations show that the out-of-plane, flexural acoustic phonons provide the dominant contribution to ${\ensuremath{\kappa}}_{L}$ of graphene for all strains, temperatures, and system sizes considered, supporting a previous prediction that used an optimized Tersoff empirical interatomic potential. For the range of finite system sizes considered, we show that the ${\ensuremath{\kappa}}_{L}$ of graphene is relatively insensitive to strain. This provides validation for use of the BPE approach to calculate ${\ensuremath{\kappa}}_{L}$ for unstrained graphene, which has recently been called into question. The temperature and system size dependence of the calculated ${\ensuremath{\kappa}}_{L}$ of graphene is in good agreement with experimental data. The enhancement of ${\ensuremath{\kappa}}_{L}$ with isotopic purification is found to be relatively small due to strong anharmonic phonon-phonon scattering. This work provides insight into the nature of phonon thermal transport in graphene, and it demonstrates the power of first principles thermal transport techniques.

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Metadata

Authors
Lindsay, L., Li, W., Carrete, J., Mingo, N., Broido, D. A., & Reinecke, T. L.
Venue
Physical Review B
Published
2014-04-24
Volume
89
Issue
15
ISSN
  • 1098-0121 (ISSN-L)
  • 1550-235X
OpenAlex
W2318096221
Cited by
394
References
9
FWCI
18.91
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Phonon thermal transport in strained and unstrained graphene from first principles. https://app.cochat.ai/papers/10.1103/physrevb.89.155426
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Lindsay, L., Li, W., Carrete, J., Mingo, N., Broido, D. A., & Reinecke, T. L. (2014). Phonon thermal transport in strained and unstrained graphene from first principles. Physical Review B. https://doi.org/10.1103/physrevb.89.155426

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