Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Size and dimensionality effects in superconducting Mo thin films
Year:2011
Research Areas
  • Engineering
Information
Abstract
Molybdenum is a low Tc, type I superconductor whose fundamental properties are poorly known. Its importance as an essential constituent of new high performance radiation detectors, the so-called transition edge sensors (TESs) calls for better characterization of this superconductor, especially in thin film form. Here we report on a study of the basic superconducting features of Mo thin films as a function of their thickness. The resistivity is found to rise and the critical temperature decreases on decreasing film thickness, as expected. More relevant, the critical fields along and perpendicular to the film plane are markedly different, thickness dependent and much larger than the thermodynamic critical field of Mo bulk. These results are consistent with a picture of type II 2D superconducting films, and allow estimates of the fundamental superconducting lengths of Mo. The role of morphology in determining the 2D and type II character of the otherwise type I molybdenum is discussed. The possible consequences of this behaviour on the performance of radiation detectors are also addressed
International
Si
JCR
Si
Title
Superconductor Science Technololgy
ISBN
1361-6668
Impact factor JCR
0
Impact info
Volume
24
doi:10.1088/0953-2048/24/7/075014
Journal number
From page
1
To page
7
Month
SIN MES
Ranking
Participants
  • Autor: L. Fábrega (Institut de Ci`encia de Materials de Barcelona)
  • Autor: A. Camón (Instituto de Ciencia de Materiales de Aragón)
  • Autor: I. Fernández-Martínez (Instituto de Microelectrónica de Madrid (CNM-CSIC))
  • Autor: J. Sesé (Instituto de Nanociencia de Aragón)
  • Autor: R. Parra-Borderías (Instituto de Ciencia de Materiales de Aragón)
  • Autor: O. Gil (Institut de Ci`encia de Materials de Barcelona)
  • Autor: Raquel Gonzalez Arrabal (UPM)
  • Autor: J.L. Costa-Krämer (Instituto de Microelectrónica de Madrid (CNM-CSIC))
  • Autor: F. Briones (Instituto de Microelectr¿onica de Madrid (CNM-CSIC))
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
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)