High-frequency fluctuational conductivity in YBa$_{2}$Cu$_{3}$O$_{7-δ}$

Simple item page
dc.creatorSilva, E.
dc.creatorMarcon, R.
dc.creatorFastampa, R.
dc.creatorGiura, M.
dc.creatorSarti, S.
dc.date2002-08-17
dc.date.accessioned2026-07-07T02:46:52Z
dc.date.available2026-07-07T02:46:52Z
dc.descriptionWe present measurements of the fluctuational excess conductivity at 48 GHz and 24 GHz in YBa$_{2}$Cu$_{3}$O$_{7-δ}$ films above the transition temperature. The measurements depart from the gaussian prediction for finite-frequency fluctuational conductivity. We focus on the region not too close to $T_{c}$, where the real part of the excess conductivity drops much faster than the prediction of the gaussian model. We calculate the dynamic excess conductivity within a Ginzburg-Landau approach. In the calculation we insert a short-wavelength cutoff of the order of the inverse coherence length, in order to suppress high-momentum modes. The excess conductivity of all samples measured can be described very well by the modified model.
dc.descriptionRevTeX, 4 pages, 2 figures. To appear in J. Low Temp. Phys. (Proceedings of MOS 02 Conference, Hsinchu, Taiwan, 13-17/8/2002)
dc.identifierhttps://arxiv.org/abs/cond-mat/0208342
dc.identifierhttp://arxiv.org/abs/cond-mat/0208342
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/19799
dc.subjectSuperconductivity
dc.titleHigh-frequency fluctuational conductivity in YBa$_{2}$Cu$_{3}$O$_{7-δ}$
dc.typetext

Files

Collections

arXiv