Angular dependence of the Josephson critical current across c-axis twist junctions of layered superconductors.

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The authors studied theoretically the c-axis Josephson critical current for bicrystals of high temperature superconductors twisted an angle {phi}{sub 0} about the c-axis with respect to each other. They used the effective Lawrence-Doniach models appropriate for the cases of pure s-wave or d{sub x{sup 2}-y{sup 2}}-wave order parameters, and of a dominant d{sub x{sup 2}-y{sup 2}}-wave order parameter combined with a subdominant one of either s-wave or d{sub xy}-wave form, as a function of the temperature and {phi}{sub 0}. The results demonstrate that this new phase-sensitive experiment can serve as a very useful test of order parameter symmetry. In particular, ... continued below

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14 p.

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Klemm, R. A. July 31, 1998.

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Description

The authors studied theoretically the c-axis Josephson critical current for bicrystals of high temperature superconductors twisted an angle {phi}{sub 0} about the c-axis with respect to each other. They used the effective Lawrence-Doniach models appropriate for the cases of pure s-wave or d{sub x{sup 2}-y{sup 2}}-wave order parameters, and of a dominant d{sub x{sup 2}-y{sup 2}}-wave order parameter combined with a subdominant one of either s-wave or d{sub xy}-wave form, as a function of the temperature and {phi}{sub 0}. The results demonstrate that this new phase-sensitive experiment can serve as a very useful test of order parameter symmetry. In particular, the recent zero-field experiments in the vicinity of T{sub c} by li et al. on c-axis twist junctions of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}} are very difficult to explain with a dominant d{sub x{sup 2}-y{sup 2}}-wave order parameter.

Physical Description

14 p.

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OSTI as DE00010908

Medium: P; Size: 14 pages

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  • International Symposium on Optical Science, Engineering, and Instrumentation (SPIE), San Diego, CA (US), 07/20/1998--07/22/1998

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  • Report No.: ANL/MSD/CP-96961
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 10908
  • Archival Resource Key: ark:/67531/metadc622823

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  • July 31, 1998

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  • June 16, 2015, 7:43 a.m.

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  • April 7, 2017, 2:04 p.m.

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Klemm, R. A. Angular dependence of the Josephson critical current across c-axis twist junctions of layered superconductors., article, July 31, 1998; Illinois. (digital.library.unt.edu/ark:/67531/metadc622823/: accessed April 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.