Magnetic-field dependence of the reversible axial-strain effect in Y-Ba-Cu-O coated conductors

  title={Magnetic-field dependence of the reversible axial-strain effect in Y-Ba-Cu-O coated conductors},
  author={Najib Cheggour and J. W. Ekin and C S Thieme},
  journal={IEEE Transactions on Applied Superconductivity},
The critical-current density J/sub c/ of an yttrium-barium-copper-oxide (YBCO) coated conductor deposited on a biaxially-textured Ni-5at.%W substrate was measured at 76.5 K as a function of axial tensile strain /spl epsiv/ and magnetic field B applied parallel to the YBCO (a,b) plane. Reversibility of J/sub c/ with strain was observed up to /spl epsiv//spl sime/0.6% over the entire field range studied (from 0.05 to 16.5 T), which confirms the existence of an intrinsic strain effect in YBCO… CONTINUE READING
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