STRUCTURAL AND SUPERCONDUCTING PROPERTIES OF LA2-XSRXCUO4 AS A FUNCTION OF SR CONTENT

被引:345
作者
RADAELLI, PG
HINKS, DG
MITCHELL, AW
HUNTER, BA
WAGNER, JL
DABROWSKI, B
VANDERVOORT, KG
VISWANATHAN, HK
JORGENSEN, JD
机构
[1] ARGONNE NATL LAB,DIV MAT SCI,ARGONNE,IL 60439
[2] NO ILLINOIS UNIV,DEPT PHYS,DE KALB,IL 60115
来源
PHYSICAL REVIEW B | 1994年 / 49卷 / 06期
关键词
D O I
10.1103/PhysRevB.49.4163
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We have studied the structural and superconducting properties of La2-xSrxCuO4 by neutron and x-ray powder diffraction, thermogravimetry, ac susceptibility, and dc magnetization. The kinetics of the synthesis reaction were studied in order to determine the optimum conditions for preparing single-phase samples. The room-temperature and low-temperature structural properties, as determined by neutron powder diffraction, are discussed in detail. By comparing the results of the neutron-diffraction and magnetic measurements, we conclude that superconductivity exists in both the orthorhombic and tetragonal phases. The thermodynamic conditions for the stability of the La2-xSrxCuO4 phase are also investigated.
引用
收藏
页码:4163 / 4175
页数:13
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