Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Characterization of a Mo/Au Thermometer for ATHENA
Year:2013
Research Areas
  • Engineering
Information
Abstract
The first dark characterization of a thermometer fabricated with our Mo/Au bilayers to be used as a transition edge sensor is presented. High-quality, stress-free Mo layers, whose thickness is used to tune the critical temperature (TC) down to 100 mK, are deposited by sputtering at room temperature (RT) on Si3N4 bulk and membranes, and protected from degradation with a 15-nm sputtered Au layer. An extra layer of high-quality Au is deposited by ex situ e-beam to ensure low residual resistance. The thermometer is patterned on a membrane using standard photolithographic techniques and wet etching processes, and is contacted through Mo paths, displaying a sharp superconducting transition (? ? 600). Results show a good coupling between Mo and Au layers and excellent TC reproducibility, allowing to accurately correlate dMo and TC. Since dAu is bigger than ?M for all analyzed samples, bilayer residual resistance can be modified without affecting TC. Finally, first current to voltage measurements at different temperatures are measured and analyzed, obtaining the corresponding characterization parameters
International
Si
JCR
Si
Title
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
ISBN
1051-8223
Impact factor JCR
1,041
Impact info
Volume
23
10.1109/TASC.2012.2236140
Journal number
3
From page
0
To page
5
Month
SIN MES
Ranking
0
Participants
  • Autor: M. Parra-Borderías
  • Autor: Ivan Fernandez Martinez (UPM)
  • Autor: L. Fábrega
  • Autor: A. Camón
  • Autor: Oscar Gil
  • Autor: J.L. Costa-Krämer
  • Autor: Raquel Gonzalez Arrabal (UPM)
  • Autor: J. Sesé
  • Autor: J. Bueno
  • Autor: F. Briones
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Fusión Nuclear Inercial y Tecnología de fusión
  • Centro o Instituto I+D+i: Instituto de Fusión Nuclear
  • Centro o Instituto I+D+i: Instituto de Energía Solar
  • Departamento: Ingeniería Nuclear
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)