Coupling between electrons and optical phonons in suspended bilayer graphene

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Coupling between electrons and optical phonons in suspended bilayer graphene. / Laitinen, Antti; Kumar, Manohar; Oksanen, Mika; Plaçais, Bernard; Virtanen, Pauli; Hakonen, Pertti.

In: Physical Review B, Vol. 91, No. 12, 121414, 2015, p. 1-5.

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Laitinen, Antti ; Kumar, Manohar ; Oksanen, Mika ; Plaçais, Bernard ; Virtanen, Pauli ; Hakonen, Pertti. / Coupling between electrons and optical phonons in suspended bilayer graphene. In: Physical Review B. 2015 ; Vol. 91, No. 12. pp. 1-5.

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@article{0b4a9152a6ea4cbb9a5658e744ab63bf,
title = "Coupling between electrons and optical phonons in suspended bilayer graphene",
abstract = "Using electrical transport experiments and shot noise thermometry, we investigate electron-phonon heat transfer rate in a suspended bilayer graphene. Contrary to monolayer graphene with heat flow via three-body supercollision scattering, we find that regular electron–optical-phonon scattering in bilayer graphene provides the dominant scattering process at electron energies ≳0.15eV. We determine the strength of these intrinsic heat flow processes of bilayer graphene and find good agreement with theoretical estimates when both zone edge and zone center optical phonons are taken into account.",
author = "Antti Laitinen and Manohar Kumar and Mika Oksanen and Bernard Pla{\cc}ais and Pauli Virtanen and Pertti Hakonen",
note = "VK: Low Temperature Laboratory",
year = "2015",
doi = "10.1103/PhysRevB.91.121414",
language = "English",
volume = "91",
pages = "1--5",
journal = "Physical Review B (Condensed Matter and Materials Physics)",
issn = "2469-9950",
publisher = "American Physical Society",
number = "12",

}

RIS - Download

TY - JOUR

T1 - Coupling between electrons and optical phonons in suspended bilayer graphene

AU - Laitinen, Antti

AU - Kumar, Manohar

AU - Oksanen, Mika

AU - Plaçais, Bernard

AU - Virtanen, Pauli

AU - Hakonen, Pertti

N1 - VK: Low Temperature Laboratory

PY - 2015

Y1 - 2015

N2 - Using electrical transport experiments and shot noise thermometry, we investigate electron-phonon heat transfer rate in a suspended bilayer graphene. Contrary to monolayer graphene with heat flow via three-body supercollision scattering, we find that regular electron–optical-phonon scattering in bilayer graphene provides the dominant scattering process at electron energies ≳0.15eV. We determine the strength of these intrinsic heat flow processes of bilayer graphene and find good agreement with theoretical estimates when both zone edge and zone center optical phonons are taken into account.

AB - Using electrical transport experiments and shot noise thermometry, we investigate electron-phonon heat transfer rate in a suspended bilayer graphene. Contrary to monolayer graphene with heat flow via three-body supercollision scattering, we find that regular electron–optical-phonon scattering in bilayer graphene provides the dominant scattering process at electron energies ≳0.15eV. We determine the strength of these intrinsic heat flow processes of bilayer graphene and find good agreement with theoretical estimates when both zone edge and zone center optical phonons are taken into account.

UR - http://dx.doi.org/10.1103/PhysRevB.91.121414

U2 - 10.1103/PhysRevB.91.121414

DO - 10.1103/PhysRevB.91.121414

M3 - Article

VL - 91

SP - 1

EP - 5

JO - Physical Review B (Condensed Matter and Materials Physics)

JF - Physical Review B (Condensed Matter and Materials Physics)

SN - 2469-9950

IS - 12

M1 - 121414

ER -

ID: 2025759