OXYGEN STOICHIOMETRY, CRITICAL-TEMPERATURE AND PINNING MECHANISMS IN THE 2212 BSCCO SUPERCONDUCTOR

被引：18

作者：

GONZALEZCALBET, JM

BADIA, A

VALLETREGI, M

CANEIRO, A

RAMIREZ, J

RILLO, C

LERA, F

NAVARRO, R

机构：

[1] UNIV COMPLUTENSE MADRID,FAC QUIM,DEPT QUIM INORGAN,E-28040 MADRID,SPAIN

[2] UNIV ZARAGOZA,CSIC,ICMA,E-5009 ZARAGOZA,SPAIN

[3] UNIV COMPLUTENSE MADRID,FAC FARM,DEPT QUIM INORGAN & BIOINORGAN,E-28040 MADRID,SPAIN

[4] DEPT INGN ELECT & INFORMAT,E-50015 ZARAGOZA,SPAIN

[5] CTR ATOM BARILOCHE,RA-8400 BARILOCHE,ARGENTINA

来源：

PHYSICA C | 1992年 / 203卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(92)90528-K

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Accurate chemical and structural characterizations, critical temperatures (T(c)) derived from magnetic measurements and magnetization analysis of the pinning force density (F(p)) on a series of BSCCO samples have been used to model the effect of the oxygen content (y). The variations of c-axis, T(c)(y) and F(p)(y) are related to those of the irreversibility fields (B(irr)) through the change in the number of oxygen vacancies, which are considered as effective pinning sites. The scaling of F(p)(B) using B(irr) is analyzed.

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页码：223 / 230

页数：8

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