Hole concentration of sintered Bi2-xPbxSr2Ca1-yYyCu2O8+d

被引:0
作者
Yasuoka, H [1 ]
Tochihara, S
Katsumata, T
Yamaguchi, A
Mashino, M
Mazaki, H
Osada, M
Kakihana, M
机构
[1] Natl Def Acad, Dept Math & Phys, Yokosuka, Kanagawa 2398686, Japan
[2] RIKEN, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan
[3] Tokyo Inst Technol, Mat & Struct Lab, Yokohama, Kanagawa 2268503, Japan
来源
PHYSICA B | 2000年 / 284卷
关键词
AC susceptibility; hole concentration; Bi-2212; substituted;
D O I
10.1016/S0921-4526(99)02437-0
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The effect of Pb and/or Y doping on the hole concentration n(h) of Bi2-xPbxSr2Ca1-yYyCu2O8+d was studied by means of optical absorption. T-c and magnetic response were examined in terms of fundamental and harmonic susceptibilities. The sample of x = 0, y = 0.2 shows the highest T-c. Further substitution of Y decreases both T-c and n(h). Pb substitution introduces holes only for the case of poor nh samples. The pinning force density is enhanced with n(h). (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:1087 / 1088
页数:2
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