SUPERCONDUCTIVITY AT 28-K IN A CUPRATE WITH A NIOBIUM OXIDE INTERMEDIARY LAYER

被引：96

作者：

CAVA, RJ ^{[1
]}

KRAJEWSKI, JJ ^{[1
]}

TAKAGI, H ^{[1
]}

ZANDBERGEN, HW ^{[1
]}

VANDOVER, RB ^{[1
]}

PECK, WF ^{[1
]}

HESSEN, B ^{[1
]}

机构：

[1] DELFT UNIV TECHNOL,NATL CTR HIGH RESOLUT ELECTRON MICROSCOPY,DELFT,NETHERLANDS

来源：

PHYSICA C | 1992年 / 191卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(92)90653-T

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A new copper oxide based superconductor is reported based on the ordered interleaving of NbO6 or TaO6 octahedra between the apices of copper oxide pyramids. Good bulk superconductivity is observed for only a narrow range of temperatures, annealing temperatures, annealing times and cooling rates. The relatively low T(c) of the prototype compound Sr2Nd1.5Ce0.5NbCu2O10-delta, may be due to the presence of the insulating NbO6 layers or the wide (Nd, Ce)2O2 layers which separate the CuO2 planes.

引用

页码：237 / 242

页数：6

共 12 条

[11] SYNTHESIS AND STRUCTURE OF A NEW FAMILY OF CUPRATE SUPERCONDUCTORS - LNSR2CU2GAO7
VAUGHEY, JT
THIEL, JP
HASTY, EF
GROENKE, DA
STERN, CL
POEPPELMEIER, KR
DABROWSKI, B
HINKS, DG
MITCHELL, AW
[J]. CHEMISTRY OF MATERIALS, 1991, 3 (05) : 935 - 940
[12] NEW FAMILIES OF LAYERED CUPRATES CONTAINING DOUBLE-MO2-UNIT FLUORITE BLOCKS - (HO, CE)3SR2CU3O11 AND (HO, CE)3SR2CU2(CU, PB)O11, (HO, CE)3SR2CU2(CU, FE)O11, (HO, CE)3SR2CU2(CU, AL)O11
WADA, T
ICHINOSE, A
YAMAUCHI, H
TANAKA, S
[J]. PHYSICA C, 1990, 171 (3-4): : 344 - 347

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