环境气氛对Y-Ba-Cu-O超导体的影响  

INFLUENCE OF AMBIENT ATMOSPHERE ON Y-Ba-Cu-O SUPERCONDUCTOR

作　　者：郑思定[1] 曹毅[1] 缪柏材 罗维昂[1] 华中一[1] 

机构地区：[1]复旦大学

出　　处：《低温物理学报》1989年第3期218-221,共4页Low Temperature Physical Letters

摘　　要：用喇曼光谱观察了 H_2O、CO_2等气氛对 YBa_2Cu_3O_(7-x)超导体的影响,发现加工或存放时此类超导体表面极易受环境气氛的作用,发生超导电性退化.测量了用水溶解后的生成物,发现在特殊条件下超导体可被分解并重新形成 BaCO_3等氧化物.Raman spectroscopy is used to study the reaction of the YBa2Cu3O7-x superconductor in H2O and CO2.The data show that the superconductor is highly sensitive to ambient atmosphere during processing and storage.We dissolved Y-Ba-Cu-O superconductor in water and investigated the reaction products by Raman scattering,finding that under special conditions the superconductor was decomposed and BaCO3 and other oxide compounds were formed.

关 键 词：环境气氛 氧化物 超导体 钇 钡 铜 

分 类 号：TM262.014[一般工业技术—材料科学与工程]