Physics – Condensed Matter – Superconductivity
Scientific paper
1999-03-17
Physical Review Letters 82(#26) pp. 5345-5348 (1999)
Physics
Condensed Matter
Superconductivity
4 pages including 3 figures
Scientific paper
10.1103/PhysRevLett.82.5345
We study the c-axis transport of stacked, intrinsic junctions in Bi2Sr2CaCu2O8+y single crystals, fabricated by the double-sided ion beam processing technique from single crystal whiskers. Measurements of the I-V characteristics of these samples allow us to obtain the temperature and voltage dependence of the quasiparticle c-axis conductivity in the superconducting state, the Josephson critical current, and the superconducting gap. We show that the BCS d-wave model in the clean limit for resonant impurity scattering with a significant contribution from coherent interlayer tunneling, describes satisfactorily the low temperature and low energy c-axis transport of both quasiparticles and Cooper pairs.
Balatsky Alexander V.
Bulaevskii Lev N.
Graf Matthias. J.
Latyshev Yu. I.
Maley Martin P.
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