STRUCTURAL AND ELECTROMAGNETIC PROPERTIES OF BI-SR-CA-CU-NI-O SINGLE-CRYSTALS

被引：0
|
作者：
HA, DH [1 ]
OKA, K [1 ]
MATSUHATA, H [1 ]
IGA, F [1 ]
NISHIHARA, Y [1 ]
机构：
[1] ELECTROTECH LAB,TSUKUBA,IBARAKI 305,JAPAN
来源：
PHYSICA B | 1994年 / 194卷
关键词：
D O I：
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中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The structural and physical properties have been investigated in Bi2Sr2Ca1Cu2-xNixO8+delta (X=0, 0.02 and 0.04) single crystals. Powder X-ray diffraction pattern and high resolution electron microscope image confirm all of the single crystals to be of Bi(2212) phase with a superstructure along the b-axis. Although the superconducting transition temperature and the ratio of rho(b)/rho(a) decrease linearly with Ni concentration, we couldn't observe any structural change in single crystals by high resolution image and electron diffraction measurement. Magnetic hysteresis curves for X=0 and 0.04 at 35 K are the same each other. These results suggest that Ni atoms don't form clusters but distribute uniformly in CuO2 plane.
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页码：2203 / 2204
页数：2
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