(Hg,Pb)(Ba,Sr)2Ca2Cu3O8+δ single crystals:: Influence of Sr substitutions on structure, hole concentration in CuO2 planes and irreversibility line

被引：4
|
作者：
Karpinski, J [1 ]
Schwer, H
Kazakov, SM
Angst, M
Jun, J
Wisniewski, A
Puzniak, R
机构：
[1] Swiss Fed Inst Technol, Solid State Phys Lab, CH-8093 Zurich, Switzerland
[2] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2000年 / 341卷
关键词：
D O I：
10.1016/S0921-4534(00)00527-X
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The hole concentration in CuO2 planes, structure and irreversibility field (H-irr) as a function of Sr content in (Hg,Pb)(Ba,Sr)(2)Ca2Cu3O8+delta single crystals were investigated. The main results are: (1) H-irr increases significantly with Sr substitution, (2) in nonsubstituted crystals almost all holes are concentrated in the inner CuO2 planes, (3) with increasing Sr content the distribution of holes between outer and inner CuO2 planes becomes more homogeneous, (4) the thickness of the charge reservoir decreases with Sr substitution by 0.7 Angstrom.
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页码：421 / 424
页数：4
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