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

5 引用 (Scopus)

抜粋

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.

元の言語English
記事番号045008
ジャーナルSuperconductor Science and Technology
26
発行部数4
DOI
出版物ステータスPublished - 2013 4 1
外部発表Yes

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。これらはともに一意のフィンガープリントを構成します。

  • これを引用