Critical current and Josephson plasma resonance in the vortex glass phase of Bi2Sr2CaCu2O8+δ
L. N. Bulaevskii, M. B. Gaifullin, Yuji Matsuda, M. P. Maley
DOI 10.1103/PhysRevB.63.140503 · Physical Review B
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Abstract
We calculate the field dependence of the critical current and of the Josephson plasma resonance (JPR) frequency in the macroscopically uniform vortex glass phase in highly anisotropic layered superconductors and in standard pointlike Josephson junctions when the field is applied perpendicular to the junction. In these calculations we assume that, in the single-vortex pinning regime, at low fields B, vortex positions are weakly adjusted to the Josephson coupling and we account only for the adjustment of the phase difference. Our results are in agreement with experimental data for the JPR frequency measured in the Bi2Sr2CaCu2Ox superconductor in the field range 0.03–0.6 T after field cooling.
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. | 82.5 | Pressure not reported | unknown |
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