Non-invasive thermometer based on proximity superconductor for ultra-sensitive calorimetry

Abstract

We present radio-frequency thermometry based on a tunnel junction between a superconductor and proximitized normal metal. It allows operation in a wide range of biasing conditions. We demonstrate that the standard finite-bias quasiparticle tunneling thermometer suffers from large dissipation and loss of sensitivity at low temperatures, whereas thermometry based on zero bias anomaly avoids both these problems. For these reasons the latter method is suitable down to lower temperatures, here to about 25 mK. Both thermometers are shown to measure the same local temperature of the electrons in the normal metal in the range of their applicability.

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Cited by in corpus (22)

• Colloquium: Quantum heat transport in condensed matter systems
• Thermometry in the quantum regime: Recent theoretical progress
• Probing quantum devices with radio-frequency reflectometry
• Josephson-Threshold Calorimeter
• Thermal transistor and thermometer based on Coulomb-coupled conductors
• Engineering dissipation with resistive elements in circuit quantum electrodynamics
• Quantum trajectory analysis of single microwave photon detection by nanocalorimetry
• Nanoscale Quantum Calorimetry with Electronic Temperature Fluctuations
• On-demand thermoelectric generation of equal-spin Cooper pairs
• Calorimetry of a Quantum Phase Slip
• Quantum Wheatstone Bridge
• Quantum jump approach to microscopic heat engines
• Mesoscopic effects in the heat conductance of superconducting-normal-superconducting and normal-superconducting junctions
• Thermal signature of Majorana fermions in Josephson junction
• Heat dissipation mechanisms in hybrid superconductor-semiconductor devices revealed by Joule spectroscopy
• Thermometry Based on a Superconducting Qubit
• Hybrid master equation for calorimetric measurements
• Optimized proximity thermometer for ultra-sensitive detection
• Three-terminal normal-superconductor junction as thermal transistor
• Leveraging collective effects for thermometry in waveguide quantum electrodynamics
• A non-local cryogenic thermometer based on Coulomb-coupled systems
• Optimized proximity thermometer for ultrasensitive detection: Role of an ohmic electromagnetic environment