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Conductive Polymer Switch For Controlling Superconductivity

Published online by Cambridge University Press:  16 February 2011

Steven G. Haupt ,
Rung-Kuang Lo ,
David R. Riley ,
Jianai Zhao  and
John T. McDevitt
Steven G. Haupt
Affiliation:
Department of Chemistry and Biochemistry, University of Texas at Austin, Austin, Texas 78712
Rung-Kuang Lo
Affiliation:
Department of Chemistry and Biochemistry, University of Texas at Austin, Austin, Texas 78712
David R. Riley
Affiliation:
Department of Chemistry and Biochemistry, University of Texas at Austin, Austin, Texas 78712
Jianai Zhao
Affiliation:
Department of Chemistry and Biochemistry, University of Texas at Austin, Austin, Texas 78712
John T. McDevitt
Affiliation:
Department of Chemistry and Biochemistry, University of Texas at Austin, Austin, Texas 78712
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Abstract

Electrochemical techniques are exploited to fabricate conductive polymer/high-Tcsuperconductor sandwich structures. In such hybrid polymer/superconductor systems, it is found that when the polymer is oxidized to its conductive state, the transition temperature (Tc) and critical current (Jc) of the underlying superconductor film are suppressed. Reversible Modulations in the values of the transition temperatures up to 50 K are noted for these structures. Upon reduction of the conductive polymer layer back to its non-conductive form, Tc is found to return to values close to those acquired for the underivatized YBa2Cu3O7-δ film. Thus, the principle of a Molecular/superconductor switch for controlling superconductivity is demonstrated.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 328: Symposium Q – Electrical, Optical, and Magnetic Properties of Organic Solid State Materials , 1993 , 757
Copyright
Copyright © Materials Research Society 1994

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References

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