| High current superconductivity in FeSe(0.5)Te(0.5)-coated conductors at 30 tesla. | |
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MedLine Citation:
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PMID: 23299897 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Although high-temperature superconductor cuprates have been discovered for more than 25 years, superconductors for high-field application are still based on low-temperature superconductors, such as Nb(3)Sn. The high anisotropies, brittle textures and high manufacturing costs limit the applicability of the cuprates. Here we demonstrate that the iron superconductors, without most of the drawbacks of the cuprates, have a superior high-field performance over low-temperature superconductors at 4.2 K. With a CeO(2) buffer, critical current densities >10(6) A cm(-2) were observed in iron-chalcogenide FeSe(0.5)Te(0.5) films grown on single-crystalline and coated conductor substrates. These films are capable of carrying critical current densities exceeding 10(5) A cm(-2) under 30 tesla magnetic fields, which are much higher than those of low-temperature superconductors. High critical current densities, low magnetic field anisotropies and relatively strong grain coupling make iron-chalcogenide-coated conductors particularly attractive for high-field applications at liquid helium temperatures. |
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Authors:
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Weidong Si; Su Jung Han; Xiaoya Shi; Steven N Ehrlich; J Jaroszynski; Amit Goyal; Qiang Li |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Nature communications Volume: 4 ISSN: 2041-1723 ISO Abbreviation: Nat Commun Publication Date: 2013 Jan |
Date Detail:
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Created Date: 2013-01-09 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101528555 Medline TA: Nat Commun Country: England |
Other Details:
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Languages: eng Pagination: 1347 Citation Subset: IM |
Affiliation:
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Condensed Matter Physics & Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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