{"title":"Intrinsic Josephson junction characteristics of Nd2-xCexCuO4 /SrTiO3 epitaxial films","authors":"","doi":"10.1016/j.ssc.2024.115723","DOIUrl":null,"url":null,"abstract":"<div><div>The current-voltage (<em>I</em>-<em>V</em>) properties along the <em>c</em> axis on Nd<sub>2-<em>x</em></sub>Ce<sub><em>x</em></sub>CuO<sub>4</sub>/SrTiO<sub>3</sub> epitaxial films with <em>x</em> = 0.145, 0.15 were investigated. For all the samples it has been established that the <em>I-V</em> characteristics exhibit several resistive branches, which correspond to the resistive states of individual Josephson junctions. The results confirm the idea of a tunneling mechanism between the CuO<sub>2</sub> layers (superconductor - insulator - superconductor junction) for the investigated Nd<sub>2-<em>x</em></sub>Ce<sub><em>x</em></sub>CuO<sub>4</sub> compound. The <em>I</em>-<em>V</em> dependence of this compound with <em>x</em> = 0.15 points out on the nonmonotonic nature of the d-wave or anisotropic <em>s</em>-wave symmetry order parameter associated with the coexistence of superconductivity and antiferromagnetic fluctuations.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":null,"pages":null},"PeriodicalIF":2.1000,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Solid State Communications","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0038109824003004","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, CONDENSED MATTER","Score":null,"Total":0}
引用次数: 0
Abstract
The current-voltage (I-V) properties along the c axis on Nd2-xCexCuO4/SrTiO3 epitaxial films with x = 0.145, 0.15 were investigated. For all the samples it has been established that the I-V characteristics exhibit several resistive branches, which correspond to the resistive states of individual Josephson junctions. The results confirm the idea of a tunneling mechanism between the CuO2 layers (superconductor - insulator - superconductor junction) for the investigated Nd2-xCexCuO4 compound. The I-V dependence of this compound with x = 0.15 points out on the nonmonotonic nature of the d-wave or anisotropic s-wave symmetry order parameter associated with the coexistence of superconductivity and antiferromagnetic fluctuations.
期刊介绍：
Solid State Communications is an international medium for the publication of short communications and original research articles on significant developments in condensed matter science, giving scientists immediate access to important, recently completed work. The journal publishes original experimental and theoretical research on the physical and chemical properties of solids and other condensed systems and also on their preparation. The submission of manuscripts reporting research on the basic physics of materials science and devices, as well as of state-of-the-art microstructures and nanostructures, is encouraged.
A coherent quantitative treatment emphasizing new physics is expected rather than a simple accumulation of experimental data. Consistent with these aims, the short communications should be kept concise and short, usually not longer than six printed pages. The number of figures and tables should also be kept to a minimum. Solid State Communications now also welcomes original research articles without length restrictions.
The Fast-Track section of Solid State Communications is the venue for very rapid publication of short communications on significant developments in condensed matter science. The goal is to offer the broad condensed matter community quick and immediate access to publish recently completed papers in research areas that are rapidly evolving and in which there are developments with great potential impact.
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