Evidence that the reversible strain effect on critical current density and flux pinning in Bi2Sr2Ca2Cu3Ox tapes is caused entirely by the pressure dependence of the critical temperature

Published

December 23, 2010

Author(s)

Daniel C. van der Laan, J. F. Douglas, Cameron C. Clickner, Theodore C. Stauffer, Loren F. Goodrich, Hans J. van Eck

Abstract

It is well known that the critical temperature of cuprate- and iron-based high-temperature superconductors changes with pressure. YBa₂Cu₃O_7-δ coated conductors, as well as Bi₂Sr₂CaCu₂O_x and Bi₂Sr₂Ca₂Cu₃O_x tapes and wires, show a clear reversible effect of strain on their current-carrying capability, but no clear understanding about the origin of this effect has been obtained. For the first time, we present evidence that the pressure dependence of the critical temperature is entirely responsible for a reversible change in critical current and magnetic flux pinning in Bi₂Sr₂Ca₂Cu₃O_x tapes with strain.

Citation

Superconductor Science and Technology

Volume

24

Pub Type

Journals

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Keywords

high-temperature superconductivity, critical current, strain

Citation

van, D. , Douglas, J. , Clickner, C. , Stauffer, T. , Goodrich, L. and van, H. (2010), Evidence that the reversible strain effect on critical current density and flux pinning in Bi2Sr2Ca2Cu3Ox tapes is caused entirely by the pressure dependence of the critical temperature, Superconductor Science and Technology, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=905493 (Accessed October 6, 2024)