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Measurements of the superconducting anisotropy in FeSe with a resonance frequency technique

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dc.contributor.author Cao R.
dc.contributor.author Dong J.
dc.contributor.author Wang Q.
dc.contributor.author Yang Y.
dc.contributor.author Zhao C.
dc.contributor.author Zeng X.
dc.contributor.author Chareev D.
dc.contributor.author Vasiliev A.
dc.contributor.author Wu B.
dc.contributor.author Wu G.
dc.date.accessioned 2020-01-15T22:10:58Z
dc.date.available 2020-01-15T22:10:58Z
dc.date.issued 2019
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/156909
dc.description.abstract © 2019 Author(s). Utilizing a novel method with the resonance frequency of a LC circuit, we measured the superconducting anisotropy of single crystals of an Fe-based superconductor FeSe with applied magnetic field up to 16 T. We found that the temperature dependence of the upper critical field Hc2(T) of FeSe coincides with the Werthamer-Helfand-Hohenberg (WHH) model when taking the Maki parameter α into consideration, suggesting an important role played by spin-paramagnetic effect in suppressing the superconductivity. When temperature T → 0, the values of Hc2,≈c(0) and Hc2,≈ab(0) derived from the WHH fitting are close to and fall within the range of the Pauli limit, for field H0 applied parallel to the c-axis and to the ab-plane, respectively. As compared with other typical iron-based high-Tc superconductors, lower values of Hc2(0) and higher superconducting anisotropy Γ(0) were observed in FeSe.
dc.title Measurements of the superconducting anisotropy in FeSe with a resonance frequency technique
dc.type Article
dc.relation.ispartofseries-issue 4
dc.relation.ispartofseries-volume 9
dc.collection Публикации сотрудников КФУ
dc.source.id SCOPUS-2019-9-4-SID85065623328


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  • Публикации сотрудников КФУ Scopus [22633]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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