Publication:
Chemical preferential doping in grain boundaries of melt textured YBa2Cu3Oy superconductors

dc.contributor.author Cheng, CH en_US
dc.contributor.author Zhu, Xiao-Tong en_US
dc.contributor.author Zhao, Yong en_US
dc.date.accessioned 2021-11-25T13:00:58Z
dc.date.available 2021-11-25T13:00:58Z
dc.date.issued 2003 en_US
dc.description.abstract Diffusion method has been developed to preferentially dope the grain boundaries of YBa2Cu3Oy bicrystals and polycrystals. Ca and Fe have been used as dopants in this study. The distribution of the dopants is highly localized in the grain boundaries. The critical current density of a YBa2Cu3Oy textured polycrystalline sample is significantly enhanced by doping Ca in grain boundaries; however, it is significantly decreased by doping Fe in grain boundaries. The Ca-doping effect has been explained by charge-carrier compensation in the grain boundaries, which reduces the grain boundary resistance and thus increases the grain boundary critical current. The Fe-doping effect has been explained by worsening the hole loss in grain boundary region, which increases the grain resistance and thus decreases the grain boundary critical current. en_US
dc.identifier.issn 0953-2048 en_US
dc.identifier.uri http://hdl.handle.net/1959.4/38940
dc.language English
dc.language.iso EN en_US
dc.rights CC BY-NC-ND 3.0 en_US
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/3.0/au/ en_US
dc.source Legacy MARC en_US
dc.title Chemical preferential doping in grain boundaries of melt textured YBa2Cu3Oy superconductors en_US
dc.type Journal Article en
dcterms.accessRights metadata only access
dspace.entity.type Publication en_US
unsw.accessRights.uri http://purl.org/coar/access_right/c_14cb
unsw.identifier.doiPublisher http://dx.doi.org/10.1088/0953-2048/16/1/323 en_US
unsw.relation.faculty Science
unsw.relation.ispartofissue 1 en_US
unsw.relation.ispartofjournal Superconductor Science & Technology en_US
unsw.relation.ispartofpagefrompageto 130-136 en_US
unsw.relation.ispartofvolume 16 en_US
unsw.relation.originalPublicationAffiliation Cheng, CH, Materials Science & Engineering, Faculty of Science, UNSW en_US
unsw.relation.originalPublicationAffiliation Zhu, Xiao-Tong, Materials Science & Engineering, Faculty of Science, UNSW en_US
unsw.relation.originalPublicationAffiliation Zhao, Yong, Materials Science & Engineering, Faculty of Science, UNSW en_US
unsw.relation.school School of Materials Science & Engineering *
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