Growth and study of single-phase 2212 BSCCO whiskers of submicron cross-sectional area

Possible dominance of the Maki–Thompson process in the fluctuation conductivity of Bi-2212 superconducting whiskers

“…7, together with the measured ∆σ data reported as a function of ǫ. From the point of view of the experimental results, it should be noted that, as far as comparisons are possible, our data show the same qualitative behaviour already reported for Bi-2212 whiskers, 29 …”

“…In spite of the fact that they have no definite correspondence with the crystal structure, they agree with the values reported in previous studies of Bi-2212 thin films 26 and whiskers. 29 The values for τ listed in Table IV are very common and reasonable, too, and the combination of these parameters results in a remarkable decrease of the importance of the DOS term with respect to the intermediate case: for the clean limit approximation the DOS contribution ranges only between 10% and 32% of the AL term for the two samples. Therefore it could be stated that the AL process is dominant and that the DOS term is only a correction, with no need of the Maki-Thompson process to explain the experimental data, which is the hierarchy commonly accepted between the various paraconductivity contributions.…”

Superconducting critical current of a singleCu2O4plane in aBi2You1, Yurgens2, Winkler3 2005Phys. Rev. B

“…Although being quite reasonable, this value is among the largest ever observed in other J c ab measurements 13,14,15,16,17,18,19,20 . In order to model the dynamics of current flow through the SIJJ, we assume quite arbitrarily the following form of the voltage drop across the ab plane at the bridge between the two regions:…”

d-like symmetry of the order parameter and intrinsic Josephson effects inBi2Sr2CaCu<

“…First of all, whisker crystals were prepared. Details of growth condition and their characterization have been given in our previous papers [13][14][15][16][17]. An amorphous plate of Bi3Sr2Ca2Cu4Ox prepared by the melt quench process was annealed at 850ºC for 120h in a flowing 72%O2-N2 gas mixture.…”