Gold substitution in HgBa2Ca2Cu3O8+δ single crystals

被引：5
|
作者：
Colson, D [1 ]
Viallet, V
Forget, A
Poissonnet, S
Schmirgeld-Mignot, L
Marucco, JF
Bertinotti, A
机构：
[1] CEA Saclay, SPEC, F-91191 Gif Sur Yvette, France
[2] CEA Saclay, CEREM, SRMP, F-91191 Gif Sur Yvette, France
[3] Univ Paris Sud, Lab Composes Non Stoechiometr, CNRS, URA 446, F-91405 Orsay, France
来源：
PHYSICA C | 1998年 / 295卷 / 3-4期
关键词：
synthesis; single-crystal growth; magnetic susceptibility;
D O I：
10.1016/S0921-4534(97)01794-2
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We have synthesized single crystals of Hg1-xAuxBa2Ca2Cu3O8+delta (Hg(Au)-1223) a with nominal Au content in the range 0 less than or equal to x less than or equal to 0.20. The composition and the homogeneity of the crystals were studied by election microprobe analyses and the lattice constants were determined by X-ray diffraction. The nominal composition of gold of x = 0.05 corresponds to an optimum for growing stoichiometric Hg-1223 single crystals. Each individual crystal shows a homogeneous gold content but the amount of substitution varies from 0.08 to 0.14 from crystal to crystal. These crystals exhibit superconductivity at T-c= 133 K. (C) 1998 Elsevier Science B.V.
引用
收藏
页码：186 / 192
页数：7
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