What question did this study set out to answer?

To determine the stability of a magnetic flux vortex in a type-II superconductor under a parallel electrical current.

June 13, 1977Physical Review Letters

Spiral-Vortex Expansion Instability in Type-II Superconductors

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Authors

JCJohn R. ClemAmes National Laboratory

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Implication

Theoretical analysis demonstrates helical perturbation instability in type-II superconductors, suggesting a critical mechanism under longitudinal magnetic fields.

Key Points

To determine the stability of a magnetic flux vortex in a type-II superconductor under a parallel electrical current.
Modeled the theoretical stability of an isolated flux vortex subjected to an axial current density.
Evaluated the growth of helical perturbations using principles analogous to magnetohydrodynamics.
A flux vortex becomes unstable to the growth of helical perturbations when the parallel current density exceeds a critical threshold.
The instability mirrors phenomena in magnetohydrodynamics and provides a mechanism for vortex behavior in longitudinal magnetic fields.

Cite This Study

John R. Clem (1977) studied this question.

synapsesocial.com/papers/6a9568e2d44cea3cdd82a257 https://doi.org/10.1103/physrevlett.38.1425

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Implication

Theoretical analysis demonstrates helical perturbation instability in type-II superconductors, suggesting a critical mechanism under longitudinal magnetic fields.

Spiral-Vortex Expansion Instability in Type-II Superconductors

Discussion

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Implication

Key Points

Cite This Study

Spiral-Vortex Expansion Instability in Type-II Superconductors

Discussion

Member takes

Implication

Key Points

Cite This Study

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