Effects of anomalous Andreev reflection in high Tc layered structures


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
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Copyright:©2001 IEEE
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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