Investigation of current transport normal and parallel to the tape plane in BSCCO/Ag tapes

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We have performed transport, resistivity and critical current measurements on Bi-2223/Ag and Bi-2212/Ag tapes with current directions both parallel and perpendicular to the tape plane in magnetic fields up to 7 T and 50<T<250 K. We find that the resistivity along the tape normal (nominal c-axis in a textured tape) is metallic, scales with the inplane resistivity at all fields and is dramatically reduced from single crystal c-axis values. Similarly, the critical current along the tape normal exhibits magnetic field and field orientation dependences similar to those for current flow along the tape plane. These results indicate that current flow ... continued below

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Maley, M.P.; Cho, J.H.; Willis, J.O. & Bulaevskii, L.N. July 1, 1995.

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We have performed transport, resistivity and critical current measurements on Bi-2223/Ag and Bi-2212/Ag tapes with current directions both parallel and perpendicular to the tape plane in magnetic fields up to 7 T and 50<T<250 K. We find that the resistivity along the tape normal (nominal c-axis in a textured tape) is metallic, scales with the inplane resistivity at all fields and is dramatically reduced from single crystal c-axis values. Similarly, the critical current along the tape normal exhibits magnetic field and field orientation dependences similar to those for current flow along the tape plane. These results indicate that current flow along CuO{sub 2} planes dominates current transport even along the tape normal in highly textured tapes.

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5 p.

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OSTI as DE95015333

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  • International workshop on superconductivity: controlled processing of high temperature superconductors - fundamentals and applications, Maui, HI (United States), 18-21 Jun 1995

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  • Other: DE95015333
  • Report No.: LA-UR--95-1644
  • Report No.: CONF-950637--7
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 95307
  • Archival Resource Key: ark:/67531/metadc794496

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  • July 1, 1995

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  • Dec. 19, 2015, 7:14 p.m.

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  • Feb. 25, 2016, 7:57 p.m.

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Maley, M.P.; Cho, J.H.; Willis, J.O. & Bulaevskii, L.N. Investigation of current transport normal and parallel to the tape plane in BSCCO/Ag tapes, article, July 1, 1995; New Mexico. (digital.library.unt.edu/ark:/67531/metadc794496/: accessed September 26, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.