Effects of Edge Boundaries on Josephson Vortices in Finite-Size Layered High-Tc Superconductors
Masahiko Machida
DOI 10.1103/PhysRevLett.96.097002 · Physical Review Letters
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Abstract
In order to systematically explain the in-plane size effects for the periodical dependence of the Josephson-vortex-flow resistance on the magnetic field, we numerically explore static lattice structures of Josephson vortices in layered high-Tc superconductors with finite in-plane sizes from sub-μm to more than 10 μm by simulating slow quenching processes from high temperature under the magnetic field. The numerical results reveal that in sub-μm size the rectangular lattice is a widely spread major structure in H−T diagram and the triangular lattice is a minor one which emerges only around the specific magnetic field supplying nϕ0 per one junction area. These results suggest that sub-μm size layered high-Tc superconductors are promising for future device applications.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2CaCu2O8+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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