Anisotropy and directional pinning in YBa

N. Pompeo, A. Augieri, K. Torokhtii, V. Galluzzi, G. Celentano, E. Silva

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Abstract

Measurements of anisotropic transport properties (dc and high-frequency regime) of driven vortex matter in YBa2Cu3O7-xwith elongated strong-pinning sites (c-axis aligned, self-assembled BaZrO3nanorods) are used to demonstrate that the effective-mass angular scaling takes place only in intrinsic physical quantities (flux-flow resistivity), and not in pinning-related Labusch parameter and critical currents. Comparison of the dynamics at different time scales shows evidence for a transition of the vortex matter toward a Mott phase, driven by the presence of nanorods. The strong pinning in dc arises partially from a dynamic effect. © 2013 Author(s).
Original languageEnglish
Article number022603
Pages (from-to)-
JournalApplied Physics Letters
Volume103
Issue number2
DOIs
Publication statusPublished - 8 Jul 2013
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Pompeo, N., Augieri, A., Torokhtii, K., Galluzzi, V., Celentano, G., & Silva, E. (2013). Anisotropy and directional pinning in YBa. Applied Physics Letters, 103(2), -. [022603]. https://doi.org/10.1063/1.4813405