Lower critical fields of Bi2Sr2CaCu2O8+d and YBa2Cu3O7-d single crystals

S. Tochihara, H. Yasuoka, H. Mazaki, M. Osada, M. Kakihana

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


The lower critical fields (Hc1) of Bi2Sr2CaCuO8+d and YBa2Cu3O7-d single crystals were measured by SQUID at various temperatures below Tc. The measurements were based on studies of type-II superconductors in the framework of the modified Kim-Anderson model. Results show that Hc1,c(T) (H∥c axis) and Hc1,ab(T) (H⊥c axis) for BSCCO show an anomalous upturn below about 40 K, but those for YBCO do not show any anomaly.

Original languageEnglish
Pages (from-to)8299-8306
Number of pages8
JournalJournal of Applied Physics
Issue number12
Publication statusPublished - 1999 Jun 15
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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