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Journal article
Characterization of the Thermal Properties of Ir/Pt Bilayer Transition Edge Sensors
Journal of low temperature physics
05 Sep 2022
Abstract
We are developing a low-T-c TES-based large-area and low-threshold detector targeting a variety of potential applications. The detector consists of a 50.8-mm-diameter Si wafer as the substrate and radiation absorber, a single Ir/Pt bilayer TES sensor in the center, and normal metal Au pads added to the TES to strengthen the TES-absorber thermal coupling. Tight TES-absorber thermal coupling improves detector sensitivity and response uniformity. Here, we report on the electron-phonon (e-ph) coupling strengths for the Ir/Pt bilayer and Au that are measured with our prototype detectors and TES devices. We found that a second weak thermal link besides the one due to e-ph coupling in Ir/Pt or Au was required to explain our data. With the effects of the second weak link accounted for, the extracted e-ph coupling constant Sigma for Ir/Pt bilayer in the T-c range between 32 and 70 mK is 1.9 x 10(8) WK-5 m(-3), and Sigma's for Au at 40 mK and 55 mK are 2.2 x 10(9) WK-5 m(-3) and 3.2 x 10(9) WK-5 m(-3), respectively.
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Details
- Title
- Characterization of the Thermal Properties of Ir/Pt Bilayer Transition Edge Sensors
- Creators
- J. Zhang - Argonne National LaboratoryC. L. Chang - Argonne Natl Lab, High Energy Phys Div, Lemont, IL 60439 USAB. Fujikawa - Lawrence Berkeley Natl Lab, Nucl Sci Div, Berkeley, CA 94720 USAG. Karapetrov - Drexel UniversityYu G. Kolomensky - Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USAW-K Kwok - Argonne Natl Lab, Mat Sci Div, Lemont, IL 60439 USAM. Lisovenko - Argonne Natl Lab, High Energy Phys Div, Lemont, IL 60439 USANovosad - Argonne Natl Lab, Mat Sci Div, Lemont, IL 60439 USAJ. Pearson - Argonne Natl Lab, Mat Sci Div, Lemont, IL 60439 USASingh - Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USAG. Wang - Argonne Natl Lab, High Energy Phys Div, Lemont, IL 60439 USAB. Welliver - Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USAU. Welp - Argonne Natl Lab, Mat Sci Div, Lemont, IL 60439 USAV. G. Yefremenko - Argonne Natl Lab, High Energy Phys Div, Lemont, IL 60439 USALawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Publication Details
- Journal of low temperature physics
- Publisher
- Springer Nature
- Number of pages
- 15
- Grant note
- DOE Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division; United States Department of Energy (DOE) DE-AC02-05CH11231; DE-AC02-06CH11357 / US Department of Energy (DOE), Office of Science; United States Department of Energy (DOE) DE-AC02-06CH11357 / DOE Office of Science, Office of Basic Energy Sciences; United States Department of Energy (DOE) DE-FG02-00ER41138 / DOE Office of Science, Office of Nuclear Physics; United States Department of Energy (DOE)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics
- Web of Science ID
- WOS:000850026800018
- Scopus ID
- 2-s2.0-85137735294
- Other Identifier
- 991019295192704721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Physics, Applied
- Physics, Condensed Matter