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Inhomogeneity of charge and spin distribution in CuO2 layers of high-Tx superconductors: NQR/NMR studies of 1-2-3 compounds

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dc.contributor.author Teplov M.
dc.contributor.author Bakharev O.
dc.contributor.author Dooglav A.
dc.contributor.author Egorov A.
dc.contributor.author Mukhamedshin I.
dc.contributor.author De Gronckel H.
dc.contributor.author Alloul H.
dc.contributor.author Mendels P.
dc.contributor.author Eremina R.
dc.date.accessioned 2018-09-17T21:35:02Z
dc.date.available 2018-09-17T21:35:02Z
dc.date.issued 1999
dc.identifier.issn 1557-1939
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/135174
dc.description.abstract The copper NQR and ZFNMR and thulium NMR are studied in a series of 123 superconductors. It is found that in the aged 60-K superconductors RBa2Cu3O6+x the well known conducting (nonmagnetic) phase co-exists with the magnetically-ordered phase. Both microphases contain two types of inequivalent Cu(2) sites in CuO2 planes. In the conducting phase, these sites differ only in the Cu(2) NQR frequency, whereas in the magnetic one they differ also in the value of hyperfine magnetic fields at Cu(2) nuclei. These differences and the occupation numbers of the two sites are found to be independent of x (in the range x = 0.5 - 0.6) and of the volume fraction of the magnetic phase. At low temperatures, the nuclear spin-lattice relaxation in both microphases proceeds via magnetic centers formed by hole-doped Cu-O-Cu chain fragments. © 1999 Plenum Publishing Corporation.
dc.relation.ispartofseries Journal of Superconductivity and Novel Magnetism
dc.subject Chain fragments
dc.subject CuO2layers
dc.subject NQR
dc.subject Spin-lattice relaxation
dc.subject ZFNMR
dc.title Inhomogeneity of charge and spin distribution in CuO2 layers of high-Tx superconductors: NQR/NMR studies of 1-2-3 compounds
dc.type Article
dc.relation.ispartofseries-issue 1
dc.relation.ispartofseries-volume 12
dc.collection Публикации сотрудников КФУ
dc.relation.startpage 113
dc.source.id SCOPUS15571939-1999-12-1-SID0033076654


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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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