ELECTRICAL, MAGNETIC AND SUPERCONDUCTING PROPERTIES OF THE QUENCHED BI2SR2CA1-XNDXCU2O8+DELTA SYSTEM

被引：49

作者：

KOYAMA, K ^{[1
]}

KANNO, S ^{[1
]}

NOGUCHI, S ^{[1
]}

机构：

[1] TOYOHASHI UNIV TECHNOL,DEPT ELECT & ELECTR ENGN,TOYOHASHI 441,JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1990年 / 29卷 / 01期

关键词：

Dc susceptibility; Hole concentration in [Cu-O; Oxygen concentration; Quenching; Cu-0]p valence;

D O I：

10.1143/JJAP.29.L53

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Structure, resistivity and susceptibility are studied in the quenched Bi2Sr2Ca1-xNdxCu2O8+δsystem. The quenched samples with 0≦x≦1 have a single phase of the Bi2Sr2CaCu2O8+δstructure, as do the furnace-cooled samples. The oxygen concentration decreases slightly by about 0.05 upon quenching from 800°C to liquid nitrogen temperature. The Tcremains a constant (∼90 K) for x≦0.15, and decreases linearly with x for 0.15≦x≦0.45, and superconductivity disappears in the samples with x≧0.45. Referring to the previous results for the furnace-cooled Bi2Sr2Ca1-xNdxCu2O8+δsystem, the relationship between the Tcand the hole concentration in [Cu-O] is confirmed to be universal in both the quenched and the furnace-cooled Bi2Sr2Ca1-xNdxCu2O8+δsystems. © 1990 IOP Publishing Ltd.

引用

页码：L53 / L56

页数：4

共 9 条

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