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.

引用

页码：266 / 267

页数：2