Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1812854 | Physica B: Condensed Matter | 2010 | 4 Pages |
The effect of the partial substitution of Sr by Sb in the Bi-based superconducting materials has been investigated by X-ray diffraction (XRD), dc electrical resistivity, magnetoresistivity and critical temperature. Maximum value of the volume fraction of high-Tc phase was calculated to be 69.83 for the sample having Sb content x=0.06; the same sample has also shown the highest Tc(0) value of 107.8 K amongst the samples. We estimated the transition temperature of the samples from the resistivity versus temperature measurements in dc magnetic fields up to 0.5 T. All samples exhibit metal-like behavior and appear to have a multiphase character. The lattice parameters and cell volume were found to be affected by substitution of Sb at the Sr-site.