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Evidence for two-dimensional nucleation of superconductivity in MgB2

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dc.contributor.author Sidorenko A.
dc.contributor.author Tagirov L.
dc.contributor.author Rossolenko A.
dc.contributor.author Ryazanov V.
dc.contributor.author Klemm M.
dc.contributor.author Tidecks R.
dc.date.accessioned 2018-09-17T20:38:47Z
dc.date.available 2018-09-17T20:38:47Z
dc.date.issued 2002
dc.identifier.issn 0295-5075
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/133817
dc.description.abstract According to the crystal structure of MgB2 and band structure calculations quasi-two-dimensional (2D) boron planes are responsible for the superconductivity. We report on critical fields and resistance measurements of 30 nm thick MgB2 films grown on MgO single crystalline substrate. A linear temperature dependence of the parallel and perpendicular upper critical fields indicates a 3D-like penetration of magnetic field into the sample. Resistivity measurements, in contrast, yield a temperature dependence of fluctuation conductivity above Tc which agrees with the Aslamazov-Larkin theory of fluctuations in 2D superconductors. We consider this finding as an experimental evidence of two-dimensional nucleation of superconductivity in MgB2.
dc.relation.ispartofseries Europhysics Letters
dc.title Evidence for two-dimensional nucleation of superconductivity in MgB2
dc.type Article
dc.relation.ispartofseries-issue 2
dc.relation.ispartofseries-volume 59
dc.collection Публикации сотрудников КФУ
dc.relation.startpage 272
dc.source.id SCOPUS02955075-2002-59-2-SID0036324165


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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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