氧等离子体处理对淬火YBa_2Cu_3O_y的影响  

EFFECTS OF OXYGEN PLASMA FOR QUENCHED YBa_2Cu_3O_y

作　　者：牟其伍[1] 陈武呜 

机构地区：[1]重庆建筑大学应用科学与技术系,重庆400045 [2]南京大学国家固体微结构实验室,南京210093

出　　处：《低温物理学报》2000年第4期272-275,共4页Low Temperature Physical Letters

基　　金：国家超导研究和发展中心资助项目

摘　　要：Effects of oxygen plasma on improvement of superconductivity in y-123 were studied here. At room temperature quenched samples were treated with oxygen plasma produced by discharging oxygen gas. As quenched y-123 was treated by oxygen plasma, 90K-phase varied as plasma treated period. Experimental results supported that oxygen canons at room temperature can’ trim’ Oxygen vacancies in ordering in a axis and form or complete Cu(l )-O chains in b axis on Cu(l )-O planes.Effects of oxygen plasma on improvement of superconductivity in y-123 were studied here. At room temperature quenched samples were treated with oxygen plasma produced by discharging oxygen gas. As quenched y-123 was treated by oxygen plasma, 90K-phase varied as plasma treated period. Experimental results supported that oxygen canons at room temperature can' trim' Oxygen vacancies in ordering in a axis and form or complete Cu(l )-O chains in b axis on Cu(l )-O planes.

关 键 词：氧等离子体 淬火 离温超导体 Y-123 

分 类 号：O539[理学—等离子体物理]