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.
@article{arxiv.1908.04097,
title = {Superconductor-ferromagnet tunnel junction thermoelectric bolometer and calorimeter with a SQUID readout},
author = {Zhuoran Geng and Ari P. Helenius and Tero T. Heikkilä and Ilari J. Maasilta},
journal= {arXiv preprint arXiv:1908.04097},
year = {2020}
}