Effects of the Ba-substitution for Sr in the Bi-2201 phase of BiPb(Sr,La)2CuO6+δ

被引：1
|
作者：
Hayakawa, D. [1 ]
Watanabe, T. [1 ]
Luo, T. [1 ]
Kawamata, T. [1 ]
Noji, T. [1 ]
Kato, M. [1 ]
Koike, Y. [1 ]
机构：
[1] Tohoku Univ, Grad Sch Engn, Dept Appl Phys, Aoba Ku, 6-6-05 Aoba, Sendai, Miyagi 9808579, Japan
来源：
30TH INTERNATIONAL SYMPOSIUM ON SUPERCONDUCTIVITY (ISS2017) | 2018年 / 1054卷
关键词：
SUPERCONDUCTIVITY;
D O I：
10.1088/1742-6596/1054/1/012007
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Polycrystalline samples of the Bi-2201 phase of BiPbSr1.15-xBaxLa0.85CuO6+delta have been prepared by the conventional solid-state reaction method. Through the Ba-substitution for Sr, the lattice becomes large while T-c decreases gradually. With increasing x(Ba), the hole concentration in the CuO2 plane decreases despite the increase in the number of excess oxygen. The suppression of the superconductivity may be due to the decrease in the hole concentration in the CuO2 plane and the increase in the local lattice-distortion caused by excess oxygen.
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页数：4
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