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Preparation of metal mixed plastic superconductors: Electrical properties of tin-antimony thin films on plastic substrates

J. Appl. Phys. 105, 093909 (2009); doi:10.1063/1.3123803

Published 6 May 2009

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Andrew P. Stephenson,1 Ujjual Divakar,1 Adam P. Micolich,2 Paul Meredith,1 and Ben J. Powell1
1Centre for Organic Photonics and Electronics, School of Physical Sciences, University of Queensland, Brisbane, Queensland 4072, Australia
2School of Physics, University of New South Wales, Sydney, New South Wales 2052, Australia
Metal mixed polymers are a cheap and effective way to produce flexible metals and superconductors. As part of an on-going effort to learn how to tune the properties of these systems with ion implantation, we present a study of the electrical properties of these systems prior to metal mixing. We show that the electrical properties of tin-antimony thin films are remarkably robust to variations in the substrate morphology. We demonstrate that the optical absorbance of the films at a fixed wavelength provides a reliable and reproducible characterization of the relative film thickness. We find that as the film thickness is reduced, the superconducting transition in the unimplanted thin films is broadened, but the onset of the transition remains at ~3.7  K, the transition temperature of bulk Sn. This is in marked contrast to the behavior of metal mixed films, which suggests that the metal mixing process has a significant effect on the physics of the superconducting state beyond that achieved by reducing the film thickness alone. ©2009 American Institute of Physics
History: Received 5 October 2008; accepted 26 March 2009; published 6 May 2009
Permalink: http://link.aip.org/link/?JAPIAU/105/093909/1
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KEYWORDS and PACS

Keywords
PACS
  • 81.20.-n
    Methods of materials synthesis and materials processing
  • 74.10.+v
    Occurrence of superconductivity
  • 74.70.Kn
    Organic superconductors
  • 78.66.Qn
    Optical properties of polymers; organic compounds (thin films)
  • 74.25.Fy
    Transport properties of superconductors
  • 74.25.Gz
    Optical properties of superconductors
  • YEAR: 2009

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PUBLICATION DATA

ISSN:
0021-8979 (print)   1089-7550 (online)
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