6533b862fe1ef96bd12c771c
RESEARCH PRODUCT
Superconductor-ferromagnet tunnel junction thermoelectric bolometer and calorimeter with a SQUID readout
Tero T. HeikkiläAri P. HeleniusIlari MaasiltaZhuoran Gengsubject
Materials sciencePhysics - Instrumentation and DetectorsPhysics::Instrumentation and DetectorsFOS: Physical sciences02 engineering and technologyApplied Physics (physics.app-ph)thermoelectric01 natural sciencesParticle detectorlaw.inventionsuprajohteetsähkömagneettinen säteilybolometermittauslaitteetTunnel junctionlawCondensed Matter::Superconductivity0103 physical sciencesThermoelectric effectcalorimeterGeneral Materials Sciencekalorimetria010306 general physicsNoise-equivalent powerCalorimeter (particle physics)business.industryBolometerDetectorPhysics - Applied PhysicsInstrumentation and Detectors (physics.ins-det)021001 nanoscience & nanotechnologyCondensed Matter PhysicsAtomic and Molecular Physics and OpticsSQUIDOptoelectronicsHigh Energy Physics::Experiment0210 nano-technologybusinessdescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-03-07 |