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Effects of a geometrical length scale on the arrowhead magnetisation of Bi2Sr2CaCu2Oysingle crystals

Authors
Journal
Physica C Superconductivity
0921-4534
Publisher
Elsevier
Publication Date
Identifiers
DOI: 10.1016/s0921-4534(97)01074-5
Disciplines
  • Mathematics

Abstract

Abstract A series of VSM measurements of hysteretic magnetisation on a progressively subdivided Bi 2Sr 2CaCu 2O y single crystal reveals that the “arrowhead” anomaly is highly dependent on the geometrical length scale of the crystal. This is consistent with a length scale of ∼0.1 mm for efficient pinning of the decomposed 2d pancake vortex glass but could also be related to the magnetic diffusion length on the time-scale of the experiment.

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