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

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

doi:10.1063/1.370673

Lower critical fields of Bi₂Sr₂CaCu₂O_8+d and YBa₂Cu₃O_7-d single crystals

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

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

The lower critical fields (H_c1) of Bi₂Sr₂CaCuO_8+d and YBa₂Cu₃O_7-d single crystals were measured by SQUID at various temperatures below T_c. The measurements were based on studies of type-II superconductors in the framework of the modified Kim-Anderson model. Results show that H_c1,c(T) (H∥c axis) and H_c1,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 language	English
Pages (from-to)	8299-8306
Number of pages	8
Journal	Journal of Applied Physics
Volume	85
Issue number	12
DOIs	https://doi.org/10.1063/1.370673
Publication status	Published - 1999 Jun 15
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Lower critical fields of Bi2Sr2CaCu2O8+d and YBa2Cu3O7-d single crystals",

abstract = "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.",

author = "S. Tochihara and H. Yasuoka and H. Mazaki and M. Osada and M. Kakihana",

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AU - Tochihara, S.

AU - Yasuoka, H.

AU - Mazaki, H.

AU - Osada, M.

AU - Kakihana, M.

PY - 1999/6/15

Y1 - 1999/6/15

N2 - 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.

AB - 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.

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Lower critical fields of Bi₂Sr₂CaCu₂O_8+d and YBa₂Cu₃O_7-d single crystals

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