TETRAGONAL-TO-ORTHORHOMBIC PHASE-TRANSITION AND SUPERCONDUCTIVITY IN THE Y-BA-CU-O SYSTEM

被引：1
|
作者：
SUGAI, T
OYA, G
IMAI, S
机构：
[1] Research Institute Electrical Communication, Tohoku University, Sendai
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1990年 / 29卷 / 02期
关键词：
Ceramics; High- Tc superconductor; Structural phase transition; Thermoanalysis;
D O I：
10.1143/JJAP.29.266
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Fully decarbonated Y-Ba-Cu-O specimens are prepared and investigated by TG-DTA analysis and susceptibility measurement. Composition dependence of Δχ/W (susceptibility change at Tc, Δχ, normalized by the weight, W) and accordingly, that of S/W(S: magnitude of the DTA anomaly corresponding to the tetragonal-to-orthorhombic phase transition) and Tc can be explained by the change of volume fraction of the 123 phase in the specimens. © 1990 The Japan Society of Applied Physics.
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收藏
页码：266 / 267
页数：2
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