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Flux dynamics of a superconductor showing a glassy paramagnetic Meissner state
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Materials Science.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Materials Science.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Materials Science.
2002 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 65, no 14, 144524- p.Article in journal (Refereed) Published
Abstract [en]

The flux dynamics of a bulk, melt-cast Bi2Sr2CaCu2O8 (Bi2212) sample has been studied by using ac-susceptibility measurements. The sample shows the paramagnetic Meissner effect (PME) and it is found that the dynamic properties of the PME are remarkably different from the dynamics of the PME of sintered Bi2212 samples. The dynamics of sintered samples implies the existence of independent spontaneous current loops, the dynamics of the melt-cast sample, in addition, suggests that the current loops in this case interact to form a low-temperature glassy phase with some similarities to a spin-glass phase.

Place, publisher, year, edition, pages
2002. Vol. 65, no 14, 144524- p.
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Physical Sciences
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URN: urn:nbn:se:uu:diva-42665DOI: 10.1103/PhysRevB.65.144524OAI: oai:DiVA.org:uu-42665DiVA: diva2:70567
Available from: 2008-10-17 Created: 2008-10-17 Last updated: 2017-12-05Bibliographically approved

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Nordblad, PerSvedlindh, Peter

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