EFFECT OF Y-SUBSTITUTION FOR THE CA SITE IN THE 110-K PHASE OF (BI, PB)-SR-CA-CU-O SUPERCONDUCTORS

被引：10
|
作者：
FURUKAWA, H
ENOMOTO, H
KISHIMOTO, T
SHIN, JS
TAKANO, Y
MORI, N
OZAKI, H
机构：
[1] OYAMA NATL COLL TECHNOL, DEPT ELECT ENGN, OYAMA 323, JAPAN
[2] NIHON UNIV, DEPT PHYS, CHIYODA KU, TOKYO 101, JAPAN
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1991年 / 30卷 / 3A期
关键词：
(BI; PB)-SR-CA-CU-O SYSTEM; 110-K (2223) PHASE; Y-SUBSTITUTION FOR CA; X-RAY POWDER DIFFRACTION; CARRIER CONCENTRATION;
D O I：
10.1143/JJAP.30.L346
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The effect of the substitution of the trivalent Y ions for the divalent Ca ions has been studied in the 110 K phase of Bi1.84Pb0.34Sr1.91(Ca(1-x)Y(x))2.03Cu3.06O10+y(x = 0 approximately 0.05). We found the solubility limit of Y to the 110 K phase around x = 0.015. Within the solubility limit, the c-axis seemed to decrease with increasing x. In the region of the 110 K single phase, the critical temperature T(c) gradually decreased with the increase of x, corresponding to the decrease of the carrier concentration.
引用
收藏
页码：L346 / L348
页数：3
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