YBCO晶体面内外磁化率随温度和空穴含量的变化

I. Kokanović, J. Cooper, K. Iida
{"title":"YBCO晶体面内外磁化率随温度和空穴含量的变化","authors":"I. Kokanović, J. Cooper, K. Iida","doi":"10.1209/0295-5075/98/57011","DOIUrl":null,"url":null,"abstract":"We report new magnetic susceptibility and anisotropy data for single crystals of YBa2Cu3O6+x from x=0.38 to 0.95. We argue that the temperature (T) dependence of the magnetic anisotropy in the normal state well above Tc arises from a combination of the pseudogap and substantial g-factor anisotropy. With this interpretation we obtain onset temperatures for superconducting fluctuations over a wide range of x. For hole concentrations p<0.14 there are two extra contributions to the magnetic susceptibility and its anisotropy. We analyse these in terms of changes in the Van Vleck paramagnetism plus a significant paramagnetic contribution from an electron pocket at low fields in the region 0.084<p<0.135. This is where the superconducting transition temperature Tc(p) deviates from the usual parabolic law and where quantum oscillations and a negative Hall coefficient are observed.","PeriodicalId":171520,"journal":{"name":"EPL (Europhysics Letters)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2012-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Changes in the in- and out-of-plane magnetic susceptibility of YBCO crystals with temperature and hole content\",\"authors\":\"I. Kokanović, J. Cooper, K. Iida\",\"doi\":\"10.1209/0295-5075/98/57011\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We report new magnetic susceptibility and anisotropy data for single crystals of YBa2Cu3O6+x from x=0.38 to 0.95. We argue that the temperature (T) dependence of the magnetic anisotropy in the normal state well above Tc arises from a combination of the pseudogap and substantial g-factor anisotropy. With this interpretation we obtain onset temperatures for superconducting fluctuations over a wide range of x. For hole concentrations p<0.14 there are two extra contributions to the magnetic susceptibility and its anisotropy. We analyse these in terms of changes in the Van Vleck paramagnetism plus a significant paramagnetic contribution from an electron pocket at low fields in the region 0.084<p<0.135. This is where the superconducting transition temperature Tc(p) deviates from the usual parabolic law and where quantum oscillations and a negative Hall coefficient are observed.\",\"PeriodicalId\":171520,\"journal\":{\"name\":\"EPL (Europhysics Letters)\",\"volume\":\"26 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2012-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"EPL (Europhysics Letters)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1209/0295-5075/98/57011\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"EPL (Europhysics Letters)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1209/0295-5075/98/57011","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3

摘要

我们报道了YBa2Cu3O6+x单晶在x=0.38 ~ 0.95范围内的磁化率和各向异性的新数据。我们认为,温度(T)依赖于正常状态下远高于Tc的磁各向异性是由赝隙和大量g因子各向异性的组合引起的。通过这种解释,我们获得了在x宽范围内超导波动的起始温度。对于空穴浓度p<0.14,磁化率及其各向异性有两个额外的贡献。我们根据Van Vleck顺磁性的变化以及电子口袋在0.084本文章由计算机程序翻译,如有差异,请以英文原文为准。
分享
查看原文 本刊更多论文
Changes in the in- and out-of-plane magnetic susceptibility of YBCO crystals with temperature and hole content
We report new magnetic susceptibility and anisotropy data for single crystals of YBa2Cu3O6+x from x=0.38 to 0.95. We argue that the temperature (T) dependence of the magnetic anisotropy in the normal state well above Tc arises from a combination of the pseudogap and substantial g-factor anisotropy. With this interpretation we obtain onset temperatures for superconducting fluctuations over a wide range of x. For hole concentrations p<0.14 there are two extra contributions to the magnetic susceptibility and its anisotropy. We analyse these in terms of changes in the Van Vleck paramagnetism plus a significant paramagnetic contribution from an electron pocket at low fields in the region 0.084
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信