Superconducting and transport properties of (Bi-Pb)-Sr-Ca-Cu-O with Cr2O3 additions

被引:23
|
作者
Abbasi, H. [1 ]
Taghipour, J. [1 ]
Sedghi, H. [1 ]
机构
[1] Univ Urmia, Ctr Superconduct Res, Dept Phys, Orumiyeh, Iran
关键词
High temperature superconductor; Cr2O3; addition; Transport critical current density; Self-field; Magnetoresistance; BI1.6PB0.4SR2CA2-XSMXCU3OY SUPERCONDUCTORS; MAGNETIC-FIELD; FLUX; SYSTEM; TAPES;
D O I
10.1016/j.jallcom.2010.01.018
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The effect of Cr2O3 additions in (Bi, Pb)-Sr-Ca-Cu-O superconductors using the conventional solid-state reaction method is reported. Cr2O3 with 0, 0.3, 0.5, 0.7, and 1.0 wt.% were added to the (Bi, Pb)-Sr-Ca-Cu-O system. The critical temperature (T-C) and transport critical current density (J(C)) were determined by the four-point probe technique. The phases in the samples were determined using the powder X-ray diffraction method. The maximum T-C and J(C) were observed for the sample with 0.5 wt.% Cr2O3. The variation in the J(C) of all the samples was explained by the effective flux pinning by Cr2O3 in the samples. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:305 / 308
页数:4
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