Copper rich Y-Ba-Cu-O superconductors

被引：0
|
作者：
Sousa, JJF
Luiz, AM
Vugman, NV
da Silva, MR
Neto, JM
机构：
[1] Univ Fed Rio de Janeiro, Inst Fis, BR-21945970 Rio De Janeiro, Brazil
[2] EFEI, Inst Ciencias, BR-37500000 Itajuba, MG, Brazil
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2001年 / 226卷
关键词：
superconductors-high-T-c; susceptibility-AC; thermomagnetic analysis; electron paramagnetic resonance;
D O I：
10.1016/S0304-8853(00)01359-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Copper rich compounds with YBaCu12O15 stoichiometry were synthesized at 900 degreesC under oxygen rich atmosphere and annealed at 350 degreesC in oxygen flow during 1, 3 and 60 days. Results of AC magnetic susceptibility, thermomagnetic analysis and electron paramagnetic resonance spectroscopy indicate multiphase materials containing the phases YBaCu-123 and YBaCu-247. Critical temperatures were determined by AC magnetic susceptibility and confirmed by EPR measurements. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：309 / 310
页数：2
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