Superconductor-ferromagnet tunnel junction thermoelectric bolometer and calorimeter with a SQUID readout

Abstract

Superconductor-ferromagnet thermoelectric detector (SFTED) is a novel ultrasensitive radiation detector based on the giant thermoelectric effect in superconductor-ferromagnet tunnel junctions. This type of detector can be operated without the need of additional bias lines, and is predicted to provide a performance rivaling transition-edge sensors and kinetic inductance detectors. Here we report our numerical studies on the SFTED noise equivalent power, energy resolution and time constant, and the feasibility of a SQUID readout in both bolometric and calorimetric regimes, with the goal to provide practical design parameters for the detector fabrication and the readout circuitry implementation.

arXiv comment6 pages, 4 figures, conference proceeding

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Cited by in corpus (8)

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• Bipolar Thermoelectricity in Bilayer-Graphene--Superconductor Tunnel Junctions
• A highly-sensitive broadband superconducting thermoelectric single-photon detector
• Magnon currents excited by the spin Seebeck effect in ferromagnetic EuS thin films
• Quasiparticle density of states and triplet correlations in superconductor/ferromagnetic-insulator structures across a sharp domain wall
• Analytical models for the pulse shape of a superconductor-ferromagnet tunnel junction thermoelectric microcalorimeter
• Bipolar thermoelectricity in S/I/NS and S/I/SN superconducting tunnel junctions
• Spontaneous symmetry breaking-induced thermospin effect in superconducting tunnel junctions