English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

A superconducting Transition-Edge Sensor (TES) with low-$T_c$ is essential ina high resolution calorimetric detection. With a motivation of developingsensitive calorimeters for applications in cryogenic neutrinoless double betadecay searches, we have been investigating methods to reduce the $T_c$ of an Irfilm down to 20 mK. Utilizing the proximity effect between a superconductor anda normal metal, we found two room temperature fabrication recipes of makingIr-based low-$T_c$ films. In the first approach, an Ir film sandwiched betweentwo Au films, a Au/Ir/Au trilayer, has a tunable $T_c$ in the range of 20-100mK depending on the relative thicknesses. In the second approach, aparamagnetic Pt thin film is used to create Ir/Pt bilayer with a tunable $T_c$in the same range. We present detailed study of fabrication andcharacterization of Ir-based low-$T_c$ films, and compare the experimentalresults to theoretical models. We show that Ir-based films with predictable andreproducible critical temperature can be consistently fabricated for use inlarge scale detector applications.

Controlling $T_c$ of Iridium Films Using the Proximity Effect