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Proceedings Paper

Surface state and normal layer effects in high-Tc superconductors
Author(s): Richard A. Klemm; Marko Ledvij; Samuel H. Liu
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Paper Abstract

In addition to the conducting CuO2 (S) layers, most high-Tc superconductors also contain other conducting (N) layers, which are only superconducting due to the proximity effect. The combination of S and N layers can give rise to complicated electronic densities of states, leading to quasilinear penetration depth and NMR relaxation rate behavior at low temperatures. Surface states can also complicate the analysis of tunneling and photoemission measurements. Moreover, geometrical considerations and inhomogeneously trapped flux are possible explanations of the paramagnetic Meissner effect and of corner and ring SQUID experiments. Hence, all of the above experiments could be consistent with isotropic s-wave superconductivity within the S-layers.

Paper Details

Date Published: 5 July 1996
PDF: 12 pages
Proc. SPIE 2697, Oxide Superconductor Physics and Nano-Engineering II, (5 July 1996); doi: 10.1117/12.250261
Show Author Affiliations
Richard A. Klemm, Argonne National Lab. (United States)
Marko Ledvij, Argonne National Lab. (United States)
Samuel H. Liu, Univ. of California/San Diego (United States)


Published in SPIE Proceedings Vol. 2697:
Oxide Superconductor Physics and Nano-Engineering II
Ivan Bozovic; Davor Pavuna, Editor(s)

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