Flux-flow and quasiparticle contributions in the field-dependent microwaveresistivity of YBCO and BSCCO films

Authors
Silva, E Marcon, R Neri, D Fastampa, R Giura, M Sarti, S
Citation
E. Silva et al., Flux-flow and quasiparticle contributions in the field-dependent microwaveresistivity of YBCO and BSCCO films, PHYSICA C, 341, 2000, pp. 1253-1254
Citations number
7
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA C
ISSN journal
09214534 → ACNP
Volume
341
Year of publication
2000
Part
2
Pages
1253 - 1254
Database
ISI
SICI code
0921-4534(200011)341:<1253:FAQCIT>2.0.ZU;2-D
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 pa rt of the resistivity vs. B cannot be explained in terms of flux motion alo ne. Including in a self-consistent treatment the contribution of the superf luid depletion in a superconductor with line nodes in the gap and the free flux flow allows to quantitatively describe all the measured curves. The me asurements allow to estimate the temperature dependence of the fluxon visco sity.