D. Bustamante, L. Feijoo, A. Osorio, T. Mitrelias, Y. Majima
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{"title":"Magnetic Properties of the Superconductor LaCaBaCu3O7","authors":"D. Bustamante, L. Feijoo, A. Osorio, T. Mitrelias, Y. Majima","doi":"10.2174/1876537801002010019","DOIUrl":null,"url":null,"abstract":"LaCaBaCu 3 O 7 (La1113) is a superconductor below T C(onset) =80K and its structure is similar to the tetragonal YBCO. In this work the magnetic properties of a bulk La1113 sample are reported and compared to those of YBCO superconductor. We explore a possibly relation of this property to its particular crystalline structure, particularly to the oxygen deficiency. In contrast to a bulk YBCO, some magnetic characteristics of La1113 below T C are: the magnetic flux can penetrate easily the bulk in its vortex region (H C1 <H<H C2 ), fewer fields can be trapped than in YBCO, small currents are able to flow in the bulk and possible applications of La1113 are restricted under applied fields lower than 10KOe and in the range of 41K-76K. The critical current density is determined by currents flowing through grain boundaries. Peak effect is observed and it is probably caused by secondary phases or from clusters of oxygen vacancies acting as field induced pins. A first magnetic phase diagram for La1113 showing the irreversibility line is reported here. Finally, we found that the specific heat capacity of La1113 is 37.2mJ/K 2 mol. © 2010. All rights reserved","PeriodicalId":262552,"journal":{"name":"The Open Superconductors Journal","volume":"4 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2010-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"24","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Open Superconductors Journal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2174/1876537801002010019","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 24
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Abstract
LaCaBaCu 3 O 7 (La1113) is a superconductor below T C(onset) =80K and its structure is similar to the tetragonal YBCO. In this work the magnetic properties of a bulk La1113 sample are reported and compared to those of YBCO superconductor. We explore a possibly relation of this property to its particular crystalline structure, particularly to the oxygen deficiency. In contrast to a bulk YBCO, some magnetic characteristics of La1113 below T C are: the magnetic flux can penetrate easily the bulk in its vortex region (H C1
超导体LaCaBaCu3O7的磁性能
LaCaBaCu 3o 7 (La1113)是一种温度低于80K的超导体,其结构与四边形YBCO相似。本文报道了La1113块体样品的磁性能,并与YBCO超导体的磁性能进行了比较。我们探索了这种特性与其特殊的晶体结构,特别是氧缺乏之间的可能关系。与块体YBCO相比,温度C以下La1113的一些磁性特征是:磁通量在其漩涡区(H C1
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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