@article{oai:iwate-u.repo.nii.ac.jp:00009789,
 author = {Naito, T and Sato, K and Yamaguchi, D and Fujishiro, H},
 issue = {15-20},
 journal = {Physica C: Superconductivity},
 month = {Jan},
 note = {We have studied the effect of a small amount of Y-site substitution by La or Pr ions on the vortex pinning in the Y–Ba–Cu–O system. (Y1-xLax)–Ba–Cu–O and (Y1-xPrx)–Ba–Cu–O bulks were fabricated by the melt-textured growth, in which x was varied from 0 to 0.01. The critical current density Jc at 77 K is improved in magnetic fields parallel to the c-axis above 2–4.5 T and the corresponding irreversibility field, Hirr, shifts to the higher value in both bulks.},
 pages = {1218--1220},
 title = {Vortex pinning properties of (Y1-xLax)-Ba-Cu-O and (Y1-xPrx)-Ba-Cu-O superconducting bulks},
 volume = {469},
 year = {2009}
}