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Intrinsic magnetic centers and microdomains in oxygen-deficient YBa2Cu3O6.5 and TmBa2Cu3O6+x

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dc.contributor.author Bakharev O.
dc.contributor.author Aminov L.
dc.contributor.author Dooglav A.
dc.contributor.author Egorov A.
dc.contributor.author Krjukov E.
dc.contributor.author Mukhamedshin I.
dc.contributor.author Naletov V.
dc.contributor.author Teplov M.
dc.contributor.author Volodin A.
dc.contributor.author Witteveen J.
dc.contributor.author Brom H.
dc.contributor.author Alloul H.
dc.date.accessioned 2018-09-17T21:39:46Z
dc.date.available 2018-09-17T21:39:46Z
dc.date.issued 1997
dc.identifier.issn 0163-1829
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/135272
dc.description.abstract We measured the influence of magnetic centers (MC's) on the nuclear relaxation in 123 compounds using 169Tm NMR and 63Cu NQR in TmBa2Cu3O6+x (x = 0, 0.2, 0.3, 0.4, 0.5, 0.6), and 89Y NMR and 63Cu NQR in YBa2Cu3O65. Particular attention is paid to the region 0.5≤x≤0.6 in order to deal with both a well-defined ortho II structure and a high enough MC concentration. The experiments reveal a two-component nuclear relaxation in the superconducting compounds at temperatures above 1 K, especially pronounced in the x = 0.5 samples. The relaxation data give evidence for microphase separation due to oxygen disorder in the basal CuOx planes. In the well-annealed samples, the MC's predominating the relaxation have S= 1/2. The concentrations of these MC's are of the order of 3% in the disordered (nonsuperconducting) microphase and ∼0.3% in the ordered (superconducting) one.
dc.relation.ispartofseries Physical Review B - Condensed Matter and Materials Physics
dc.title Intrinsic magnetic centers and microdomains in oxygen-deficient YBa2Cu3O6.5 and TmBa2Cu3O6+x
dc.type Article
dc.relation.ispartofseries-issue 17
dc.relation.ispartofseries-volume 55
dc.collection Публикации сотрудников КФУ
dc.relation.startpage 11839
dc.source.id SCOPUS01631829-1997-55-17-SID0342263224


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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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