Observation of Splintered Josephson Vortices at Grain Boundaries in [Formula presented]

R. G. Mints; Ilya Papiashvili; J. R. Kirtley; H. Hilgenkamp; G. Hammerl; J. Mannhart

doi:10.1103/PhysRevLett.89.067004

Observation of Splintered Josephson Vortices at Grain Boundaries in [Formula presented]

R. G. Mints, Ilya Papiashvili, J. R. Kirtley, H. Hilgenkamp, G. Hammerl, J. Mannhart

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

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Abstract

We have directly observed well-separated Josephson vortex splinters with unquantized magnetic flux at asymmetric [Formula presented] grain boundaries in [Formula presented] films by imaging magnetic flux with scanning SQUID microscopy. The existence of these splinter vortices has been predicted and is well described by a model based on [Formula presented] pairing symmetry and facetting of the grain boundary on a length scale shorter than the Josephson penetration depth.

Original language	English
Journal	Physical Review Letters
Volume	89
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevLett.89.067004
State	Published - 2002

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10.1103/PhysRevLett.89.067004

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abstract = "We have directly observed well-separated Josephson vortex splinters with unquantized magnetic flux at asymmetric [Formula presented] grain boundaries in [Formula presented] films by imaging magnetic flux with scanning SQUID microscopy. The existence of these splinter vortices has been predicted and is well described by a model based on [Formula presented] pairing symmetry and facetting of the grain boundary on a length scale shorter than the Josephson penetration depth.",

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AU - Hilgenkamp, H.

AU - Hammerl, G.

AU - Mannhart, J.

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AB - We have directly observed well-separated Josephson vortex splinters with unquantized magnetic flux at asymmetric [Formula presented] grain boundaries in [Formula presented] films by imaging magnetic flux with scanning SQUID microscopy. The existence of these splinter vortices has been predicted and is well described by a model based on [Formula presented] pairing symmetry and facetting of the grain boundary on a length scale shorter than the Josephson penetration depth.

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Observation of Splintered Josephson Vortices at Grain Boundaries in [Formula presented]

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