YBaCuO超导体中211相的控制及其行为研究  

ADJUSTMENT OF 211 PHASE AND ITS BEHAVIOR IN ZONE MELTING YBaCuO SUPERCONDUCTORS

作　　者：单玉桥[1] 樊占国[1] 杨光[1] 张国范[1] 赵忠贤[1] 

机构地区：[1]东北大学,中国科学院物理研究所

出　　处：《低温物理学报》1994年第1期54-58,共5页Low Temperature Physical Letters

基　　金：国家超导中心资助

摘　　要：本文研究了区域熔炼温度、化学配比对ＹＢａＣｕＯ超导体中２１１相含量的影响，用磁滞回线测量法估算了样品的临界电流密度与样品中２１１相含量的关系．总结出ＹＢａＣｕＯ超导体中起钉扎中心作用的２１１相含量的最佳值．AbstractThe effect of melting temperature and the composition of YBaCuO precursors on the Y2BaCuO5 content in zone melting YBaCuO was studied. The relation of the critical current density, which was calculated from magnetization loops and Bean's model, and the 211 phase content in the zone melting YBaCuO samples was estimated. The optimum value of 211 content for the flux pinning tenter was discussed.

关 键 词：超导体 YBCO 211相 临界电流 

分 类 号：O511.1[理学—低温物理]