Inhibition of the detrimental double vortex-kink formation in thick YBa2Cu3O7 films with BaZrO3 nanorods

D. Miu, I. Ivan, A. Crisan, P. Mele, G. Jakob, L. Miu

研究成果: Article査読

6 被引用数 (Scopus)

抄録

We investigated the temperature (T) variation of the normalized magnetization relaxation rate S and of the corresponding normalized vortex-creep activation energy U* = T/S for YBa2Cu3O7 films containing BaZrO3 nanorods, with the external magnetic field H oriented perpendicular to the film surface. It was found that by increasing the film thickness and using nanodot decorated substrates the high-T S(T) maximum appearing at low H is substituted by a minimum in S(T). As revealed by the analysis of the current density dependence of U*, this behaviour is due to the inhibition of vortex excitations involving double vortex-kinks and superkinks formation in the investigated thick films, owing to the large nanorod splay and pinning energy dispersion.

本文言語English
論文番号045008
ジャーナルSuperconductor Science and Technology
26
4
DOI
出版ステータスPublished - 2013 4 1
外部発表はい

ASJC Scopus subject areas

  • Ceramics and Composites
  • Condensed Matter Physics
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

フィンガープリント 「Inhibition of the detrimental double vortex-kink formation in thick YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7</sub> films with BaZrO<sub>3</sub> nanorods」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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