抄録
The critical current density and the irreversibility field for melt-powder-melt growth (MPMG)-processed YBa2Cu3O7-δ samples are determined magnetically in fields parallel to the c axis. Both Jc and Birr are depressed with increase of oxygen deficiency. Birr is not depressed appreciably with decrease of the concentration of Y2BaCuO5 precipitates in spite of a significant depression of Jc. A bump structure in the Jc(B) curve is observed and varies systematically with the oxygen deficiency. These results are compared to flux-pinning models.
本文言語 | English |
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ページ(範囲) | 949-953 |
ページ数 | 5 |
ジャーナル | Cryogenics |
巻 | 32 |
号 | 11 |
DOI | |
出版ステータス | Published - 1992 |
外部発表 | はい |
ASJC Scopus subject areas
- 材料科学(全般)
- 物理学および天文学(全般)