Ultrasensitive and Wide-Bandwidth Thermal Measurements of Graphene at Low Temperatures

  title={Ultrasensitive and Wide-Bandwidth Thermal Measurements of Graphene at Low Temperatures},
  author={Kin Chung Fong and Keith C. Schwab},
At low temperatures, the electron gas of graphene is expected to show both very weak coupling to thermal baths and rapid thermalization, properties which are desirable for use as a sensitive bolometer. We demonstrate an ultrasensitive, wide-bandwidth measurement scheme based on Johnson noise to probe the thermal-transport and thermodynamic properties of the electron gas of graphene, with a resolution of 2 mK= ffiffiffiffiffiffi Hz p and a bandwidth of 80 MHz. We have measured the electron… CONTINUE READING
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