Effects of anomalous Andreev reflection in high Tc layered structures

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Golubov, Alexander A. and Tafuri, Francesco (2001) Effects of anomalous Andreev reflection in high Tc layered structures. IEEE Transactions on Applied Superconductivity, 11 (1). pp. 422-425. ISSN 1051-8223

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Abstract:Andreev reflection is investigated in layered anisotropic normal metal/superconductor (N/S) systems in the case of an energy gap in S not negligible respect to the Fermi energy, as probably occurring in high critical temperature superconductors (HTS). We find that in these limits retro-reflectivity, which is a fundamental feature of Andreev reflection, is broken modifying sensitively transport across S/N interfaces. This study is extended to aspects proper of HTS junctions to investigate both the supercurrents in S-N-S Josephson structures and zero bound states in S-N contacts respectively. Such an investigation provides a new insight into the effects that anisotropy determines into the phenomenology of HTS grain boundary junctions
Item Type:Article
Copyright:©2001 IEEE
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Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/36507
Official URL:http://dx.doi.org/10.1109/77.919373
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Metis ID: 202127