Quantum transport thermometry for electrons in graphene

Abstract

We propose a method of measuring the electron temperature $T_e$ in mesoscopic conductors and demonstrate experimentally its applicability to micron-size graphene devices in the linear-response regime ($T_e\approx T$, the bath temperature). The method can be {especially useful} in case of overheating, $T_e>T$. It is based on analysis of the correlation function of mesoscopic conductance fluctuations. Although the fluctuation amplitude strongly depends on the details of electron scattering in graphene, we show that $T_e$ extracted from the correlation function is insensitive to these details.

4 pages, 4 figures; final version, as published

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Cited by in corpus (17)

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• Optical Measurement of the Phase-Breaking Length in Graphene
• Mesoscopic conductance fluctuations in graphene
• Conductance fluctuations and field asymmetry of rectification in graphene
• Optical Measurement of the Phase-Breaking Length in Graphene
• Imaging coherent transport in graphene (Part II): Probing weak localization
• Phase Coherent Transport in Graphene Nanoribbons and Graphene Nanoribbon Arrays
• Non-Ergodicity & Microscopic Symmetry Breaking of the Conductance Fluctuations in Disordered Mesoscopic Graphene
• Evidence for spin memory in the electron phase coherence in graphene
• Conductance fluctuations in quasi-two-dimensional systems: a practical view
• Mesoscopic Fluctuations of Coulomb Drag of Composite Fermions
• Sub-Kelvin Lateral Thermal Transport in Diffusive Graphene
• Mapping universal conductance fluctuations
• Disorder correction to the minimal conductance of a nodal-point semimetal