Superconducting properties and microstructures of Pb-doped Bi2Sr2Ca1Cu2Ox spherical particles prepared by containerless solidification and annealing

被引：4

作者：

Hishinuma, Y

Fujii, H

Matsumoto, A

Hirata, K

Takeya, H

Kumakura, H

Togano, K

机构：

[1] Univ Tsukuba, Cooperat Grad Sch, Tsukuba, Ibaraki 3050006, Japan

[2] Natl Res Inst Met, Tsukuba, Ibaraki 3050047, Japan

[3] Japan Sci & Technol Corp, JST, CREST, Tsukuba, Ibaraki 3050047, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1998年 / 37卷 / 7B期

关键词：

Bi2Sr2Ca1Cu2Ox superconductor; spherical particle; amorphous phase; Pb-doping; irreversibility field;

D O I：

10.1143/JJAP.37.L859

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The superconducting properties and microstructures of Pb-doped Bi-2212 spherical particles prepared by containerless solidification and subsequent annealing were investigated. After solidification, the spherical particles are present in an amorphous state which can be transformed into the Bi-2212 phase by annealing at temperatures above 800 degrees C. The Pb-doped spherical particles show an improved Bur pinning behavior which is considered to arise from the modification of the modulation structure.

引用

页码：L859 / L862

页数：4

共 6 条

[1] High critical-current density in the heavily Pb-doped Bi2Sr2CaCu2O8+delta superconductor: Generation of efficient pinning centers [J].