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Anisotropic fluctuation magnetoconductivity in a yba2cu3O7-delta single-crystal above tc
KTH, Superseded Departments, Physics. (Fasta tillståndets fysik)
KTH, Superseded Departments, Physics. (Fasta tillståndets fysik)ORCID iD: 0000-0002-9858-6235
KTH, Superseded Departments, Physics. (Fasta tillståndets fysik)
Academy of Sciences of Russia, Moscow. (Institute of Crystallography)
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1993 (English)In: Physical Review B Condensed Matter, ISSN 0163-1829, E-ISSN 1095-3795, Vol. 48, no 6, 4227-4230 p.Article in journal (Refereed) Published
Abstract [en]

The in- and out-of-plane magnetoresistance of a single crystal of YBa2Cu3O7-delta has been measured at temperatures above T(c) in magnetic fields up to 12 T. A Montgomery-type contact configuration was used with corrections for the finite size of the contacts taken into account. For temperatures up to 2.5 K above T(c) the data are well described by both the Aronov-Hikami-Larkin theory for a layered superconductor (applicable only for the in-plane magnetoconductivity) and the Ginzburg-Landau theory for a three-dimensional anisotropic superconductor (applicable for both the in-plane and the out-of-plane magnetoconductivity). All three analyses give consistent results for the coherence lengths.

Place, publisher, year, edition, pages
1993. Vol. 48, no 6, 4227-4230 p.
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:kth:diva-50006DOI: 10.1103/PhysRevB.48.4227ISI: A1993LT22900089OAI: oai:DiVA.org:kth-50006DiVA: diva2:460852
Note
QC 20111206Available from: 2011-12-01 Created: 2011-12-01 Last updated: 2017-12-08Bibliographically approved

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Andersson, Magnus

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