Coherent quasiparticle transport in grain boundary junctions employing high-Tc superconductors
Materials Science
2007-08-13 v1
Abstract
Magneto-fluctuations of the normal resistance RN have been reproducibly observed in YBa2Cu3O7-d biepitaxial grain boundary junctions at low temperatures. We attribute them to mesoscopic transport in narrow channels across the grain boundary line, occurring in an unusual energy regime. The Thouless energy appears to be the relevant energy scale. Possible implications on the understanding of coherent transport of quasiparticles in HTS and of the dissipation mechanisms are discussed.
Keywords
Cite
@article{arxiv.0708.1448,
title = {Coherent quasiparticle transport in grain boundary junctions employing high-Tc superconductors},
author = {F. Tafuri and A. Tagliacozzo and D. Born and D. Stornaiuolo and E. Gambale and D. Dalena and P. Lucignano and B. Jouault and F. Lombardi and A. Barone and B. L. Altshuler},
journal= {arXiv preprint arXiv:0708.1448},
year = {2007}
}
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