1966
DOI: 10.1103/physrev.148.766
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Solution of the Linearized Phonon Boltzmann Equation

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Cited by 781 publications
(499 citation statements)
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“…The width and length of the sample are assumed to be much larger than the phonon mean free path. work, we demonstrate from first-principles calculations that a displaced distribution of phonons can occur in graphene even in the presence of weak R-scattering, which validates the assumption of the displaced distribution used in the past studies 12,13 and correspondingly shows hydrodynamic phonon transport in graphene. The recent progress in calculating the phonon-phonon scattering matrix using first-principles 14,15 and numerical methods for solving the Peierls-Boltzmann equation 16,17 enable the calculation of phonon distributions in a specific material under a temperature gradient.…”
Section: Displaced Distribution Functionsupporting
confidence: 84%
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“…The width and length of the sample are assumed to be much larger than the phonon mean free path. work, we demonstrate from first-principles calculations that a displaced distribution of phonons can occur in graphene even in the presence of weak R-scattering, which validates the assumption of the displaced distribution used in the past studies 12,13 and correspondingly shows hydrodynamic phonon transport in graphene. The recent progress in calculating the phonon-phonon scattering matrix using first-principles 14,15 and numerical methods for solving the Peierls-Boltzmann equation 16,17 enable the calculation of phonon distributions in a specific material under a temperature gradient.…”
Section: Displaced Distribution Functionsupporting
confidence: 84%
“…The displaced distribution we present here is the first explicit confirmation of the assumption used in past theoretical studies regarding hydrodynamic phonon transport 12,13,25,26 . It also provides a theoretical basis that we will exploit to examine phonon Poiseuille flow and second sound in the following sections, further highlighting the significant hydrodynamic phonon transport in graphene.…”
Section: Displaced Distribution Functionsupporting
confidence: 81%
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“…All these models consider the heat carriers as a fluid, whose hydrodynamic-like equations of motion describe the heat transport. The phonon hydrodynamics lays on the Guyer-Krumhansl transport equation [16][17][18][19][20][21][22] for the heat flux q, i.e., (1) τq…”
Section: Heat Transport Equations Beyond the Fourier Law And Hydrodynmentioning
confidence: 99%
“…Letting and ℓ tend to zero, one finds back Fouriers' law = − ∇ . With ℓ = 0 and omitting the second order derivatives in space and time, one recovers Cattaneo's relation, while setting only = 0, expression (18) reduces to GuyerKrumhansl's relation [9]. It may be convenient to reformulate the above results in dimensionless form.…”
Section: A Generalized Transport Equation In Terms Of the Heat Fluxmentioning
confidence: 99%