Resistive transition in π-junction superconductors
Enzo Granato
DOI 10.1103/PhysRevB.69.012503 · Physical Review B
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Abstract
The resistivity behavior of inhomogeneous superconductors with random π junctions, as in high-Tc materials with d-wave symmetry, is studied by numerical simulation of a three-dimensional XY spin-glass model. Above a concentration threshold of antiferromagnetic couplings, a resistive transition is found in the chiral-glass phase at finite temperatures and the critical exponents are determined from dynamic scaling analysis. The power-law exponent for the nonlinear contribution found in recent resistivity measurements is determined by the dynamic critical exponent of this transition.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu4O8 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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