Title :
Transport properties of YBa2Cu3O7 and NdBa2Cu3O7 films prepared on textured Ag tapes
Author :
Doi, Toshiya ; Kozono, Toshiaki ; Hakuraku, Yoshinori ; Kashima, Naoji ; Nagaya, Shigeo
Author_Institution :
Fac. of Eng., Kagoshima Univ., Japan
fDate :
6/1/2005 12:00:00 AM
Abstract :
We obtained the {100}<001> textured Ag tape with both a good biaxial crystal orientation and a smooth surface, by precise control of the rolling process parameters. On this {100}<001> textured Ag tape, YBa2Cu3O7 (Y-123) and NdBa2Cu3O7 (Nd-123) films were deposited by using a pulsed laser deposition method. "Y-123/Nd-123/{100}<001> textured Ag tape" sample had both good biaxial orientation and smooth surface, as a result, relatively high Jc of 0.57×106 A/cm2 at 77 K in self field was achieved. Present Jc value is not competitive comparing with the other techniques for coated conductors (CC), such as IBAD or RABiTS, however, it is very promising. We believe that the Jc of CC using {100}<001> textured Ag tapes will increase after optimizing the Y-123 deposition process.
Keywords :
barium compounds; critical current density (superconductivity); high-temperature superconductors; neodymium compounds; pulsed laser deposition; silver; superconducting tapes; superconducting thin films; yttrium compounds; Ag; IBAD; NdBa2Cu3O7; RABiTS; Y-123 deposition process; YBa2Cu3O7; biaxial crystal orientation; coated conductor; critical current density; pulsed laser deposition; rolling process parameter; textured Ag tapes; transport property; Buffer layers; Conductors; Costs; Grain boundaries; Optical pulses; Production; Pulsed laser deposition; Substrates; Superconducting films; Surface texture; Biaxial crystal orientation; coated conductor; textured Ag tape;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2005.847769