Anisotropic Origin of the Bending Instability of the Flux-Antiflux Interface in Type-II Superconductors
L. M. Fisher, A. Bobyl, T. H. Johansen, A. L. Rakhmanov, V. A. Yampol’skii, A. V. Bondarenko, M. A. Obolenskii
DOI 10.1103/PhysRevLett.92.037002 · Physical Review Letters
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Abstract
The physical nature of the macroturbulence in vortex matter in YBCO superconductors is investigated by means of a magneto-optic study of the instability in a single crystal prepared especially for this purpose. The instability develops near those sample edges where the oppositely directed flow of vortices and antivortices, guided by twin boundaries, is characterized by the discontinuity of the tangential component of the hydrodynamic velocity. This fact indicates that the macroturbulence is analogous to the instability of fluid flow at a surface of a tangential velocity discontinuity in classical hydrodynamics and is related to the anisotropic flux motion in the superconductor.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 91 | Pressure unresolved | unknown |
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