A1 Journal article (refereed)
Analytical Models for the Pulse Shape of a Superconductor-Ferromagnet Tunnel Junction Thermoelectric Microcalorimeter (2022)

Geng, Z., & Maasilta, I. J. (2022). Analytical Models for the Pulse Shape of a Superconductor-Ferromagnet Tunnel Junction Thermoelectric Microcalorimeter. Journal of Low Temperature Physics, 209(3-4), 419-426. https://doi.org/10.1007/s10909-022-02768-y

JYU authors or editors

Geng, Zhuoran
Maasilta, Ilari

Publication details

All authors or editors: Geng, Z.; Maasilta, I. J.

Journal or series: Journal of Low Temperature Physics

ISSN: 0022-2291

eISSN: 1573-7357

Publication year: 2022

Publication date: 07/07/2022

Volume: 209

Issue number: 3-4

Pages range: 419-426

Publisher: Springer Science and Business Media LLC

Publication country: United States

Publication language: English

DOI: https://doi.org/10.1007/s10909-022-02768-y

Publication open access: Openly available

Publication channel open access: Partially open access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/82541

Web address of parallel published publication (pre-print): https://arxiv.org/abs/2206.02513

Abstract

The superconductor-ferromagnet thermoelectric detector (SFTED) is a novel ultrasensitive radiation detector based on the giant thermoelectric effect in superconductor-ferromagnet tunnel junctions. We demonstrate analytical models and solutions in the time domain for a SFTED operated as a microcalorimeter (pulse excitation), in the linear small-signal limit. Based on these solutions, the signal current and temperature pulse response were studied for two different electrical circuit models, providing design conditions for stable and non-oscillatory response.

Keywords: microelectronics; calorimetry; detectors; superconductors; magnets

Free keywords: thermoelectric; calorimeter; time-domain; analytical model

Fields of science: