Hot electron cooling by acoustic phonons in graphene

Abstract

We have investigated the energy loss of hot electrons in metallic graphene by means of GHz noise thermometry at liquid helium temperature. We observe the electronic temperature T / V at low bias in agreement with the heat diffusion to the leads described by the Wiedemann-Franz law. We report on $T\propto \sqrt{V}$ behavior at high bias, which corresponds to a T4 dependence of the cooling power. This is the signature of a 2D acoustic phonon cooling mechanism. From a heat equation analysis of the two regimes we extract accurate values of the electron-acoustic phonon coupling constant $\Sigma$ in monolayer graphene. Our measurements point to an important effect of lattice disorder in the reduction of $\Sigma$, not yet considered by theory. Moreover, our study provides a strong and firm support to the rising field of graphene bolometric detectors.

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References in corpus (23)

• The electronic properties of graphene
• Large-Area Synthesis of High-Quality and Uniform Graphene Films on Copper Foils
• Boron nitride substrates for high-quality graphene electronics
• Thermal Properties of Graphene, Carbon Nanotubes and Nanostructured Carbon Materials
• Temperature dependent transport in suspended graphene
• Hot Carrier-Assisted Intrinsic Photoresponse in Graphene
• Opportunities for mesoscopics in thermometry and refrigeration: Physics and applications
• Kohn Anomalies and Electron-Phonon Interaction in Graphite
• Dual-gated bilayer graphene hot electron bolometer
• Energy dissipation in graphene field-effect transistors
• Electronic Cooling in Graphene
• Inelastic Scattering and Current Saturation in Graphene
• Electron-phonon heat transfer in monolayer and bilayer graphene
• Wedging Transfer of Nanostructures
• Transport properties of graphene in the high-current limit
• Shot Noise with Interaction Effects in Single Walled Carbon Nanotubes
• Bolometric response in graphene based superconducting tunnel junctions
• Graphene microwave transistors on sapphire substrates
• Transport scattering time probed through rf admittance of a graphene capacitor
• Electron heating in metallic resistors at sub-Kelvin temperature
• Shot Noise Suppression and Hopping Conduction in Graphene Nanoribbons
• Electron-phonon coupling in single walled carbon nanotubes determined by shot noise
• Thermal shot noise in top-gated single carbon nanotube field effect transistors

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