Longitudinal disordering of vortex lattices in anisotropic superconductors

D. R. Harshman, E. H. Brandt, A. T. Fiory, M. Inui, D. B. Mitzi, L. F. Schneemeyer, J. V. Waszczak

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Abstract

Vortex disordering in superconducting crystals is shown to be markedly sensitive to penetration-depth anisotropy. At low temperature and high magnetic field, the muon-spin-rotation spectra for the highly anisotropic Bi2Sr2CaCu2O8+δ material are found to be anomalously narrow and symmetric about the applied field, in a manner consistent with a layered vortex sublattice structure with pinning-induced misalignment between layers. In contrast, spectra for the less-anisotropic YBa2Cu3O7-δ compounds taken at comparable fields are broader and asymmetric, showing that the vortex lattices are aligned parallel to the applied-field direction.

Original languageEnglish
Pages (from-to)2905-2908
Number of pages4
JournalPhysical Review B
Volume47
Issue number5
DOIs
StatePublished - 1 Jan 1993

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Harshman, D. R., Brandt, E. H., Fiory, A. T., Inui, M., Mitzi, D. B., Schneemeyer, L. F., & Waszczak, J. V. (1993). Longitudinal disordering of vortex lattices in anisotropic superconductors. Physical Review B, 47(5), 2905-2908. https://doi.org/10.1103/PhysRevB.47.2905