Evolution of Fishtail-effect with aging in pure and Ag-doped MG-YBCO

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dc.creatorLotnyk, D. A.
dc.creatorVovk, R. V.
dc.creatorObolenskii, M. A.
dc.creatorZavgorodniy, A. A.
dc.creatorKováč, J.
dc.creatorKaňuchová, M.
dc.creatorŠefciková, M.
dc.creatorAntal, V.
dc.creatorDiko, P.
dc.date2009-02-19
dc.date.accessioned2026-07-07T12:44:12Z
dc.date.available2026-07-07T12:44:12Z
dc.description$M(B)$-curves were experimentally investigated. Fishtail-effect (FE) was observed in MG YBa$_2$Cu$_3$O$_{7-δ}$ and YBa$_2$Cu$_{3-x}$Ag$_x$O$_{7-δ}$ (at $x \approx$ 0.02) crystals in a wide temperature range 40 K $<T<$ 75 K at the orientation of magnetic field $\textbf{H}\parallel c$. It was obtained that the influence of bulk pinning on FE is more effective at low temperatures while the influence of surface barriers is more effective at high temperatures. The value $H_{max}$ for Ag-doped crystals is larger than for a pure one that due to the presence of additional pinning centers, above all on silver atoms.
dc.description3 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0902.3394
dc.identifierhttp://arxiv.org/abs/0902.3394
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/220685
dc.subjectSuperconductivity
dc.titleEvolution of Fishtail-effect with aging in pure and Ag-doped MG-YBCO
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