{"title":"Low Temperature Variation of Superfluid Phase Stiffness in the Presence of Two Mutually Exclusive Orderings","authors":"Doyel Rakshit, Ajay Kumar Ghosh","doi":"10.1007/s10948-024-06872-w","DOIUrl":null,"url":null,"abstract":"<div><p>Superfluid phase stiffness (SPS) in the presence of two co-existing and mutually exclusive superconducting and magnetic ordering has been studied in (i) the pure EBCO and (ii) a composite system of nanoparticles of Sn and EBCO superconductors. SPS has been extracted in two different methods by using (i) nonlinear current–voltage (<i>IV</i>) characteristics and (ii) magnetization (<i>M</i>) as a function of the applied magnetic field (<i>H</i>). Variations of the SPS with temperature (<i>T</i>) are found to be different in transport and magnetic methods. A possible reason of the difference has been discussed. The nature of the variation of the SPS in the presence of nanoparticles of Sn has been explored in terms of the distribution of the bound vortex–anti-vortex pairs within the framework of the BKT transition.</p></div>","PeriodicalId":669,"journal":{"name":"Journal of Superconductivity and Novel Magnetism","volume":"38 1","pages":""},"PeriodicalIF":1.6000,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","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/s10948-024-06872-w","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
Superfluid phase stiffness (SPS) in the presence of two co-existing and mutually exclusive superconducting and magnetic ordering has been studied in (i) the pure EBCO and (ii) a composite system of nanoparticles of Sn and EBCO superconductors. SPS has been extracted in two different methods by using (i) nonlinear current–voltage (IV) characteristics and (ii) magnetization (M) as a function of the applied magnetic field (H). Variations of the SPS with temperature (T) are found to be different in transport and magnetic methods. A possible reason of the difference has been discussed. The nature of the variation of the SPS in the presence of nanoparticles of Sn has been explored in terms of the distribution of the bound vortex–anti-vortex pairs within the framework of the BKT transition.
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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