{"title":"Effectiveness of Two Pinning Profiles in Controlling Magnetic Critical Current Density in YBCO + YCMO Composites","authors":"Tasaul Sk, Probhu Mandal, Souvik Haldar, Ajay Kumar Ghosh","doi":"10.1007/s10948-023-06533-4","DOIUrl":null,"url":null,"abstract":"<div><p>Impacts of two different types of pinning centres on magnetization (<i>M</i>) and magnetic critical current density (<i>J</i><sub>cm</sub>) of YBCO superconductors have been studied. An enormous increase in <i>M</i> below critical temperature is observed to be caused by inclusions of inter-granular magnetic pinning particles of Y<sub>2</sub>CoMnO<sub>6</sub> (YCMO). However, irreversible magnetization <i>(</i>∆<i>M</i>) and <i>J</i><sub>cm</sub> are decreased by the magnetic pinning profile created by the inclusion of YCMO. <i>H</i><sub>irr</sub>(<i>T</i>) is differently sensitive to both pinning profiles. A pinning profile created by the oxygen disorder (<i>δ</i>) in the presence of a magnetic pinning is found to be effective in controlling <i>M</i>, ∆<i>M</i>, and <i>J</i><sub>cm</sub>. Magnetic pinning landscape is found to be even more effective in controlling <i>J</i><sub>cm</sub>. An exponent to explain <i>J</i><sub>cm</sub> as a function of <i>H</i> in the intermediate field <i>H</i> has been extracted at several <i>T</i>.\n</p></div>","PeriodicalId":669,"journal":{"name":"Journal of Superconductivity and Novel Magnetism","volume":"36 3","pages":"863 - 869"},"PeriodicalIF":1.6000,"publicationDate":"2023-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10948-023-06533-4.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Superconductivity and Novel Magnetism","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1007/s10948-023-06533-4","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, APPLIED","Score":null,"Total":0}
引用次数: 0
Abstract
Impacts of two different types of pinning centres on magnetization (M) and magnetic critical current density (Jcm) of YBCO superconductors have been studied. An enormous increase in M below critical temperature is observed to be caused by inclusions of inter-granular magnetic pinning particles of Y2CoMnO6 (YCMO). However, irreversible magnetization (∆M) and Jcm are decreased by the magnetic pinning profile created by the inclusion of YCMO. Hirr(T) is differently sensitive to both pinning profiles. A pinning profile created by the oxygen disorder (δ) in the presence of a magnetic pinning is found to be effective in controlling M, ∆M, and Jcm. Magnetic pinning landscape is found to be even more effective in controlling Jcm. An exponent to explain Jcm as a function of H in the intermediate field H has been extracted at several T.
期刊介绍：
The Journal of Superconductivity and Novel Magnetism serves as the international forum for the most current research and ideas in these fields. This highly acclaimed journal publishes peer-reviewed original papers, conference proceedings and invited review articles that examine all aspects of the science and technology of superconductivity, including new materials, new mechanisms, basic and technological properties, new phenomena, and small- and large-scale applications. Novel magnetism, which is expanding rapidly, is also featured in the journal. The journal focuses on such areas as spintronics, magnetic semiconductors, properties of magnetic multilayers, magnetoresistive materials and structures, magnetic oxides, etc. Novel superconducting and magnetic materials are complex compounds, and the journal publishes articles related to all aspects their study, such as sample preparation, spectroscopy and transport properties as well as various applications.
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