SYNTHESIS AND SUPERCONDUCTIVITY OF IBR-INTERCALATED BI2SR2CACU2O8

被引：15

作者：

MOCHIDA, M ^{[1
]}

KOIKE, Y ^{[1
]}

SASAKI, K ^{[1
]}

FUJIWARA, A ^{[1
]}

NOJI, T ^{[1
]}

SAITO, Y ^{[1
]}

机构：

[1] TOHOKU UNIV,FAC ENGN,DEPT APPL PHYS,AOBA KU,SENDAI,MIYAGI 980,JAPAN

来源：

PHYSICA C | 1993年 / 212卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(93)90502-H

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have succeeded in synthesizing a new intercalation compound of Bi2Sr2CaCu2O8(IBr)1/2 with the stage-1 structure. The increase in spacing between the BiO-BiO double layers through IBr intercalation is 2.1 angstrom, which is a little larger than the 2.0 angstrom in the case of Br intercalation alone and is smaller than the 3.5 angstrom in the case of only iodine intercalation. The superconducting transition temperature T(c) of Bi2Sr2CaCu2O8(IBr)x/2 decreases with increasing x for 0 less than or similar to x less than or similar to 0.4 and is almost constant, 55 K, for x greater than or similar to 0.4. This x dependence of T(c) is very similar to those of Bi2Sr2CaCu2O8Brx and Bi2Sr2CaCu2O8Ix. This is discussed in relation to the changes of the two-dimensionality and hole concentration in the CuO2 sheets through intercalation. A trial of ICl intercalation into Bi2Sr2CaCu2O8 is also described.

引用

页码：191 / 198

页数：8

共 14 条

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