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Analysis of Proximitized Molybdenum-Copper Superconducting Bilayers

Abstract A series of Molybdenum-Copper bilayers were studied for use in 120mK superconducting transition edge sensors for spectrometer applications. The Transition temperature (T<sub>C</sub>) was tuned to the desired temperature using the proximity effect, by adjusting the thickness of a normal copper layer in direct contact with the superconducting molybdenum layer in a proximitized bilayer structure. The bilayers have a fixed normal metal thickness d<sub>Cu</sub>=1250 &Aring;, on top of a variable superconductor thickness 650 &Aring; &le; d<sub>Mo</sub> &le; 1000 &Aring;. Material characterization techniques including X-ray Diffraction (XRD), Rutherford Backscattering Spectroscopy (RBS), At... (more)
Created Date 2014
Contributor Kopas, Cameron J (Author) / Newman, Nathan (Advisor) / Singh, Rakesh (Committee member) / Chamberlin, Ralph (Committee member) / Arizona State University (Publisher)
Subject Materials Science / Condensed matter physics / Low Temperature / Proximity Effect / Superconductivity / Transition Edge Sensor
Type Masters Thesis
Extent 38 pages
Language English
Reuse Permissions All Rights Reserved
Note Masters Thesis Materials Science and Engineering 2014
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS

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Description Dissertation/Thesis