Muon spin rotation measurement of the fundamental length scales in the vortex state of YBa2Cu3O6.60

Abstract

The internal field distribution in the vortex state of YBa2Cu3O6.60 is shown to be a sensitive measure of both the magnetic penetration depth and the vortex-core radius. The temperature dependence of the vortex core radius is found to be weaker than in the conventional superconductor NbSe2 and much weaker than theoretical predictions for an isolated vortex. The effective vortex-core radius decreases sharply with increasing H, whereas the penetration depth is found to be much stronger than in NbSe2.

5 pages, RevTeX, 4 encapsulated postscript figures, submitted to Phys. Rev. Lett

References in corpus (2)

• Effect of the vortex core on the magnetic field in hard superconductors
• Muon-Spin Rotation Measurements of the Magnetic Field Dependence of the Vortex-Core Radius and Magnetic Penetration Depth in NbSe2

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