Magnetic force acting on a magnetic point dipole over a superconducting thin film with a circular defect

T. J. Yang; J. C. Wei b; J. L. Chen; L. Horng

doi:10.1007/BF02563029

Magnetic force acting on a magnetic point dipole over a superconducting thin film with a circular defect

T. J. Yang, J. C. Wei b, J. L. Chen, L. Horng

Department of Physics

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

Abstract

London theory is used to calculate the magnetic levitation force acting on the magnetic point dipole placed above the type-II superconducting thin film with a circular defect. The condition of the position of point dipole to create the first vortex in the thin film is found for b ≪ ^. The difference of the lateral magnetic force ΔFr acting on the point dipole between with and without a single vortex created in the thin film is also derived and used to estimate the force to overcome the pinning force of the vertex due to the circular defect.

Original language	English
Pages (from-to)	1829-1830
Number of pages	2
Journal	Czechoslovak Journal of Physics
Volume	46
Issue number	SUPPL. 3
DOIs	https://doi.org/10.1007/BF02563029
Publication status	Published - 1996 Dec 1

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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abstract = "London theory is used to calculate the magnetic levitation force acting on the magnetic point dipole placed above the type-II superconducting thin film with a circular defect. The condition of the position of point dipole to create the first vortex in the thin film is found for b ≪ ^. The difference of the lateral magnetic force ΔFr acting on the point dipole between with and without a single vortex created in the thin film is also derived and used to estimate the force to overcome the pinning force of the vertex due to the circular defect.",

author = "Yang, {T. J.} and {Wei b}, {J. C.} and Chen, {J. L.} and L. Horng",

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AU - Wei b, J. C.

AU - Chen, J. L.

AU - Horng, L.

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AB - London theory is used to calculate the magnetic levitation force acting on the magnetic point dipole placed above the type-II superconducting thin film with a circular defect. The condition of the position of point dipole to create the first vortex in the thin film is found for b ≪ ^. The difference of the lateral magnetic force ΔFr acting on the point dipole between with and without a single vortex created in the thin film is also derived and used to estimate the force to overcome the pinning force of the vertex due to the circular defect.

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