Surface state and normal layer effects

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In addition to the conducting CuO{sub 2} (S) layers, most high-T{sub c} 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 in homogeneously trapped flux axe possible explanations of the paramagnetic Meissner effect and of corner and ring SQUID experiments. Hence, all of the above experiments could be ... continued below

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23 p.

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Klemm, R.A.; Ledvij, M. & Liu, S.H. August 1, 1995.

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Description

In addition to the conducting CuO{sub 2} (S) layers, most high-T{sub c} 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 in homogeneously trapped flux axe 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.

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23 p.

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OSTI as DE96005090

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  • International conference on superconductivity, Hualien (Taiwan, Province of China), 7-11 Aug 1995

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  • Other: DE96005090
  • Report No.: ANL/MSD/CP--86521
  • Report No.: CONF-9508208--1
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 192453
  • Archival Resource Key: ark:/67531/metadc670155

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  • August 1, 1995

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

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  • Dec. 15, 2015, 6:53 p.m.

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Klemm, R.A.; Ledvij, M. & Liu, S.H. Surface state and normal layer effects, article, August 1, 1995; Illinois. (digital.library.unt.edu/ark:/67531/metadc670155/: accessed September 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.