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Resistivity of high-Tc superconductors: Linear in T at constant p, non-linear at constant V
Umeå University, Faculty of Science and Technology, Physics.
Umeå University, Faculty of Science and Technology, Physics.
1990 (English)In: Solid State Communications, ISSN 0038-1098, Vol. 76, no 8, 1019-1022 p.Article in journal (Refereed) Published
Abstract [en]

The observed constant-pressure resistivity varrhop of most high-Tc superconductors is linear in temperature T over large ranges. We show that this is not true for the constant-volume resistivity varrhov; for 1–2–3 YBCO the correction from varrhop to varrhov is -32% at 500 K relative to the low-T value. Since theory predicts varrhov rather than varrhop, the observed linearity of varrho probably cannot be used as a tool to choose between theories for high-Tc superconductivity.

Place, publisher, year, edition, pages
Elsevier Science Ltd , 1990. Vol. 76, no 8, 1019-1022 p.
Keyword [en]
Electric resistivity, superconductors, high transition temperature superconductors, Hi-Tc, HTS, high pressure, isobaric conditions, isochoric conditions
National Category
Condensed Matter Physics Condensed Matter Physics
Research subject
Physics
Identifiers
URN: urn:nbn:se:umu:diva-26682DOI: 10.1016/0038-1098(90)90076-NOAI: oai:DiVA.org:umu-26682DiVA: diva2:273331
Available from: 2009-10-21 Created: 2009-10-21 Last updated: 2010-02-02

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Sundqvist, BertilAndersson, Britt M.

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