TY - JOUR
T1 - Critical currents of Bi:2212 doped by Fe and Ni
AU - Ilonca, G.
AU - Yang, T. R.
AU - Pop, A. V.
AU - Stiufiuc, G.
AU - Stiufiuc, R.
AU - Lung, C.
PY - 2003/5
Y1 - 2003/5
N2 - Measurements of the irreversible magnetization, ac susceptibility and electrical resistivity of Bi2Sr2Ca1-xErx(Cu1-yM y)2O8+d bulk are reported. Low concentrations of the doping elements increase the pinning force density and shift the magnetic irreversibility line towards higher fields. The intergranular critical current density was determined from ac susceptibility data by varying the field amplitude Hac in the range from 0.4 to 1000 A/m and from the irreversible part of magnetization using Bean's model. The results were discussed in terms of SIS- and SNS-type models for granular superconductors.
AB - Measurements of the irreversible magnetization, ac susceptibility and electrical resistivity of Bi2Sr2Ca1-xErx(Cu1-yM y)2O8+d bulk are reported. Low concentrations of the doping elements increase the pinning force density and shift the magnetic irreversibility line towards higher fields. The intergranular critical current density was determined from ac susceptibility data by varying the field amplitude Hac in the range from 0.4 to 1000 A/m and from the irreversible part of magnetization using Bean's model. The results were discussed in terms of SIS- and SNS-type models for granular superconductors.
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U2 - 10.1016/S0921-4534(02)02373-0
DO - 10.1016/S0921-4534(02)02373-0
M3 - Conference article
AN - SCOPUS:0038526439
SN - 0921-4534
VL - 388-389
SP - 425
EP - 426
JO - Physica C: Superconductivity and its applications
JF - Physica C: Superconductivity and its applications
T2 - proceedings of the 23rd international conference on low temper
Y2 - 20 August 2002 through 27 August 2002
ER -