Research Publications in journals:
Thermal stability of Mo/Au bilayers for TES applications.
Thermal stability of Mo/Au bilayers for TES applications.
Year:2012
Research Areas
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Engineering
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Abstract
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| Mo/Au bilayers are among the most suitable materials to be used as transition-edge sensors (TES) in cryogenic microcalorimeters and bolometers, developed, among other fields, for space missions. For this purpose the thermal stability of TES at temperatures below 150 ?C is a critical issue. We report on the dependence of functional properties (superconducting critical temperature, residual resistance and ) as well as on microstructure, chemical composition and interface quality for optimized high quality Mo/Au bilayers on annealing temperature and time. Data show that the functional properties of the bilayers remain stable at T < 150 ?C, but changes in microstructure, interface quality and functional properties were observed for layers heated at T ? 200 ?C. Microstructural and chemical composition data suggest that the measured changes in residual resistance ratio (RRR) and TC at T ? 200 ?C are mainly due to an increase in the average Au grain size and to Au migration along the Mo grain boundaries at the Au/Mo interface. A way to stabilize the functional properties of the Mo/Au bilayers against temperature enhancements is proposed. | |
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International
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Si |
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JCR
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Title
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Supercond. Science Technology |
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ISBN
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1361-6668 |
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Impact factor JCR
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Impact info
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Volume
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25 |
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10.1088/0953-2048/25/9/095001 |
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Journal number
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From page
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095001 |
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To page
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095001 |
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Month
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SIN MES |
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Participants
- Autor: M. Parra-Border¿as (Universidad de Zaragoza¿CSIC)
- Autor: I. Ferández-Martínez (Instituto de Microelectronica de Madrid, CNM-CSIC)
- Autor: L. Fábrega (Institut de Ci`encia de Materials de Barcelona, CSIC)
- Autor: A. Camón (Institut de Ciencia de Materials de Barcelona, CSIC)
- Autor: O. Gil (Institut de Ciencia de Materials de Barcelona, CSIC)
- Autor: Raquel Gonzalez Arrabal (UPM)
- Autor: J. Sesé (Instituto de Nanociencia de Aragon, Universidad de Zaragoza)
- Autor: J.L. Costa-Krämer (Instituto de Microelectronica de Madrid, CNM-CSIC)
- Autor: B. Warot-Fonrose (CEMES)
- Autor: V. Serin (CEMES)
- Autor: F. Briones (Instituto de Microelectronica de Madrid, CNM-CSIC)
Research Group, Departaments and Institutes related
- Creador: Grupo de Investigación: Fusión Nuclear Inercial y Tecnología de fusión
- Departamento: Ingeniería Nuclear
- Centro o Instituto I+D+i: Instituto de Fusión Nuclear
S2i 2021 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)