We present measurements of the real part of the microwave resistivity at 48 GHz in YBCO and BSCCO films as a function of the temperature (65-85 K) and magnetic field (1-1000 mT). The markedly sublinear behavior of the real part of the resistivity vs. B cannot be explained in terms of flux motion alone. Including in a self-consistent treatment the contribution of the superfluid depletion in a superconductor with line nodes in the gap and the free flux flow allows to quantitatively describe all the measured curves. The measurements allow to estimate the temperature dependence of the fluxon viscosity.
Silva, E., Marcon, R., Neri, D., Fastampa, R., Giura, M., Sarti, S. (2000). Flux-flow and quasiparticle contributions in the field-dependent microwave resistivity of YBCO and BSCCO films. PHYSICA. C, SUPERCONDUCTIVITY, 341, 1253-1254 [10.1016/S0921-4534(00)01156-4].
Flux-flow and quasiparticle contributions in the field-dependent microwave resistivity of YBCO and BSCCO films
SILVA, Enrico;
2000-01-01
Abstract
We present measurements of the real part of the microwave resistivity at 48 GHz in YBCO and BSCCO films as a function of the temperature (65-85 K) and magnetic field (1-1000 mT). The markedly sublinear behavior of the real part of the resistivity vs. B cannot be explained in terms of flux motion alone. Including in a self-consistent treatment the contribution of the superfluid depletion in a superconductor with line nodes in the gap and the free flux flow allows to quantitatively describe all the measured curves. The measurements allow to estimate the temperature dependence of the fluxon viscosity.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
