Contact resistance measurements recorded at conductive polymer/high-temperature superconductor interfaces

Steven G. Haupt; David R. Riley; Jianai Zhao; John T. McDevitt

doi:10.1021/j100132a002

Contact resistance measurements recorded at conductive polymer/high-temperature superconductor interfaces

Steven G. Haupt, David R. Riley, Jianai Zhao, John T. McDevitt

Research output: Contribution to journal › Article › peer-review

Abstract

Methods of making electrical contact to high-T_c superconductors with conductive polymers are described. In addition, three- and four-point resistance measurements are acquired on samples of YBa₂Cu₃C_7-δ, GdBa₂Cu₃O_7-δ, and Pb_0.3Bi_1.7Sr_1.6Ca_2.4Cu ₃O₁₀ using poly(3-hexylthiophene) contacts in order to determine the temperature dependence of the conductive polymer/superconductor contact resistance. Although the polymer/superconductor contact resistance displays activated behavior above T_c and increases as the temperature is lowered, below T_c there is a precipitous decrease in the resistance at that interface. Similar measurements completed on systems where the superconducting components are substituted by normal metals do not show any signs of such contact resistance decreases. Possible reasons for the decrease in the polymer/superconductor interface resistance at T_c are discussed.

Original language	English (US)
Pages (from-to)	7796-7799
Number of pages	4
Journal	Journal of physical chemistry
Volume	97
Issue number	30
DOIs	https://doi.org/10.1021/j100132a002
State	Published - 1993

ASJC Scopus subject areas

General Engineering
Physical and Theoretical Chemistry

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10.1021/j100132a002

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title = "Contact resistance measurements recorded at conductive polymer/high-temperature superconductor interfaces",

abstract = "Methods of making electrical contact to high-Tc superconductors with conductive polymers are described. In addition, three- and four-point resistance measurements are acquired on samples of YBa2Cu3C7-δ, GdBa2Cu3O7-δ, and Pb0.3Bi1.7Sr1.6Ca2.4Cu 3O10 using poly(3-hexylthiophene) contacts in order to determine the temperature dependence of the conductive polymer/superconductor contact resistance. Although the polymer/superconductor contact resistance displays activated behavior above Tc and increases as the temperature is lowered, below Tc there is a precipitous decrease in the resistance at that interface. Similar measurements completed on systems where the superconducting components are substituted by normal metals do not show any signs of such contact resistance decreases. Possible reasons for the decrease in the polymer/superconductor interface resistance at Tc are discussed.",

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year = "1993",

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publisher = "American Chemical Society",

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T1 - Contact resistance measurements recorded at conductive polymer/high-temperature superconductor interfaces

AU - Haupt, Steven G.

AU - Riley, David R.

AU - Zhao, Jianai

AU - McDevitt, John T.

PY - 1993

Y1 - 1993

N2 - Methods of making electrical contact to high-Tc superconductors with conductive polymers are described. In addition, three- and four-point resistance measurements are acquired on samples of YBa2Cu3C7-δ, GdBa2Cu3O7-δ, and Pb0.3Bi1.7Sr1.6Ca2.4Cu 3O10 using poly(3-hexylthiophene) contacts in order to determine the temperature dependence of the conductive polymer/superconductor contact resistance. Although the polymer/superconductor contact resistance displays activated behavior above Tc and increases as the temperature is lowered, below Tc there is a precipitous decrease in the resistance at that interface. Similar measurements completed on systems where the superconducting components are substituted by normal metals do not show any signs of such contact resistance decreases. Possible reasons for the decrease in the polymer/superconductor interface resistance at Tc are discussed.

AB - Methods of making electrical contact to high-Tc superconductors with conductive polymers are described. In addition, three- and four-point resistance measurements are acquired on samples of YBa2Cu3C7-δ, GdBa2Cu3O7-δ, and Pb0.3Bi1.7Sr1.6Ca2.4Cu 3O10 using poly(3-hexylthiophene) contacts in order to determine the temperature dependence of the conductive polymer/superconductor contact resistance. Although the polymer/superconductor contact resistance displays activated behavior above Tc and increases as the temperature is lowered, below Tc there is a precipitous decrease in the resistance at that interface. Similar measurements completed on systems where the superconducting components are substituted by normal metals do not show any signs of such contact resistance decreases. Possible reasons for the decrease in the polymer/superconductor interface resistance at Tc are discussed.

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Contact resistance measurements recorded at conductive polymer/high-temperature superconductor interfaces

Abstract

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