THERMAL-EXPANSION OF BI2.2SR1.8CACU2OX SUPERCONDUCTOR SINGLE-CRYSTALS

被引：22

作者：

YANG, ZJ ^{[1
]}

YEWONDWOSSEN, M ^{[1
]}

LAWTHER, DW ^{[1
]}

RITCEY, SP ^{[1
]}

GELDART, DJW ^{[1
]}

DUNLAP, RA ^{[1
]}

机构：

[1] DALHOUSIE UNIV,DEPT PHYS,HALIFAX,NS B3H 3J5,CANADA

来源：

JOURNAL OF SUPERCONDUCTIVITY | 1995年 / 8卷 / 02期

关键词：

BI2212 HIGH-TEMPERATURE SUPERCONDUCTOR; LATTICE PARAMETER;

D O I：

10.1007/BF00732376

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Using a low-temperature stage X-ray diffractometer, we have investigated the temperature dependence of the lattice parameters of single crystal superconductors Bi2.2Sr1.8CaCu2Ox. The experimental results show that (i) the lattice constants increase linearly with increasing temperature above about 100 K; (ii) the c-axis lattice parameter shows a kink in the superconducting transition region, while the a, b-axis parameters do not show any anomalous behavior in this region; (iii) both a, b, and c show negative thermal expansion coefficients below 40-50 K, which may be related to the characteristics of the Cu-O bond.

引用

页码：233 / 239

页数：7

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