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Constant-pressure versus constant-volume resistivities of some high transition temperature superconductors
Umeå University, Faculty of Science and Technology, Physics.
Umeå University, Faculty of Science and Technology, Physics.
1994 (English)In: Physica C, volume 235-240: Proceedings of the 4th International Conference on Materials and Mechanisms of Superconductivity: High-Temperature Superconductors (M2S HTSC IV), Grenoble 1994, part II, Elsevier Science B.V. , 1994, 1407-1408 p.Conference paper (Refereed)
Abstract [en]

The resistivity varrho is always measured at constant p, while theory assumes constant V. For high temperature superconductors there are large differences between constant-p and constant-V resistivities. We have previously shown constant-V results for YBa2Cu3O7−δ and show here similar data for La2−xSrxCuO4. Constant-V data for varrho agree with the behaviour expected for a normal metal, with low-T linearity in T and saturation at high T. We speculate that similar effects will be observed in doped fullerenes (M3C60, M = Li, K, Rb, …).

Place, publisher, year, edition, pages
Elsevier Science B.V. , 1994. 1407-1408 p.
, Physica C, Superconductivity, ISSN 0921-4534 ; Volumes 235-240
Keyword [en]
Resistivity, constant-volume conditions, isochoric resistivity, high transition temperature superconductors, HiTc, HTS
National Category
Condensed Matter Physics Condensed Matter Physics
Research subject
URN: urn:nbn:se:umu:diva-26421DOI: 10.1016/0921-4534(94)91928-3OAI: diva2:248916
Editor: P. WyderAvailable from: 2009-10-09 Created: 2009-10-09 Last updated: 2010-02-01

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