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Abstract
We investigate the basic charge and heat transport properties of charge neutral epigraphene at sub-kelvin temperatures, demonstrating a nearly logarithmic dependence of electrical conductivity over more than two decades in temperature. Using graphene's sheet conductance as an in situ thermometer, we present a measurement of electron-phonon heat transport at mK temperatures and show that it obeys the T4 dependence characteristic for a clean two-dimensional conductor. Based on our measurement, we predict the noise-equivalent power of ∼ 10 - 22 W / Hz of the epigraphene bolometer at the low end of achievable temperatures.
Original language | English |
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Article number | 103102 |
Number of pages | 4 |
Journal | Applied Physics Letters |
Volume | 118 |
Issue number | 10 |
DOIs | |
Publication status | Published - 8 Mar 2021 |
MoE publication type | A1 Journal article-refereed |
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QuESTech: QUantum Electronics Science and TECHnology training
Pekola, J., Karimi, B. & Peltonen, J.
01/01/2018 → 31/12/2021
Project: EU: Framework programmes funding