Abstract
The sharp change in resistance of a superconductor over a narrow temperature range is both a natural temperature reference and an attractive thermometer. A Transition-Edge Sensor (TES) consists of a 2dimensional metal film that is electrically biased into the superconducting phase transition, where its temperature and resistance respond to deposited energy [1]. TES thermometers have enabled some of the most sensitive calorimetric and bolometric measurements known. TES measurements of single X-ray, gamma-ray, and alpha quanta achieve the highest resolving powers of any energy-dispersive technique: E/△E ≈ 4000-5000 [2–4]. Arrays of TES microbolometers are integral to modern submillimeter and millimeter-wave astronomy, achieving microkelvin sensitivity in maps of the cosmic microwave background (for example, see Ref. 5). Despite the broad use and success of these sensors, much remains uncertain about their behavior, including their internal current distribution and the physics that determines the width of the superconducting transition under bias.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.