Abstract
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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