@article{oai:kyutech.repo.nii.ac.jp:00000250,
 author = {Yoshimi, D and Migita, M and 小田部, エドモンド 荘司 and Otabe, Edmund Soji and Matsushita, Teruo and 松下, 照男},
 issue = {1},
 journal = {Physica C: Superconductivity},
 month = {Oct},
 note = {It is known that the peak effect in melt-processed Y-123 bulk superconductors is caused by the disorder transition of flux lines pinned by oxygen deficient regions with lower Tc. In order to study the effect of dimensionality of superconductor on the peak effect, a change in the pinning characteristics by heat treatment at 550 °C was measured. Jc decreased and the peak effect became less pronounced. At the same time, the peak field and the dip field reduced. This shows that the disorder transition of flux lines took place much easier than before the heat treatment. It is speculated that the pinning energy and the transverse flux bundle size reduced due to a change of specimens to more two-dimensional underdoped state.},
 pages = {788--793},
 title = {Flux pinning property and peak effect in Y-123 bulk superconductor with changed oxygen content},
 volume = {378-381},
 year = {2002},
 yomi = {オタベ, エドモンド ソウジ and マツシタ, テルオ}
}