Vortex-motion dissipation in high-Tc superconductors at microwave frequencies
R. Marcon, R. Fastampa, M. Giura, E. Silva
DOI 10.1103/PhysRevB.43.2940 · Physical Review B
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Abstract
Measurements of the microwave surface resistance on samples of Y-Ba-Cu-O and Bi-Sr-Ca-Cu-O at different frequencies (23 and 48 GHz) indicate a universal behavior of the dissipation due to the vortex motion as a function of temperature, at low magnetic field. A temperature T0=(0.97±0.01)Tc separates two regimes such that for T<T0 the dissipation increases with T while, for T0<T<Tc the dissipation decreases with increasing T. The role of fluctuations is expedient for explaining the experimental data near Tc.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBaCuO Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| BiSrCaCuO 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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