Journal of Superconductivity and Novel Magnetism最新文献_第9页

Lateral Stability Analysis of Superconducting Levitation System with Suspension Between Two Fixed Magnetic Bodies 两固定磁体间悬浮超导悬浮系统的横向稳定性分析

IF 1.8 4区物理与天体物理

Journal of Superconductivity and Novel Magnetism Pub Date : 2023-03-23 DOI: 10.1007/s10948-023-06544-1

Maksim S. Zakharov

引用次数: 0

Effects of Yb3+ Doping on Structural, Morphological, and Temperature Dependent Magnetic Properties of MnFe2O4 Nanoparticles Yb3+掺杂对MnFe2O4纳米粒子结构、形态和温度相关磁性能的影响

IF 1.8 4区物理与天体物理

Journal of Superconductivity and Novel Magnetism Pub Date : 2023-03-21 DOI: 10.1007/s10948-023-06534-3

Sudha Gulati, Shubha Gokhale, Vandna Luthra

{"title":"Effects of Yb3+ Doping on Structural, Morphological, and Temperature Dependent Magnetic Properties of MnFe2O4 Nanoparticles","authors":"Sudha Gulati, Shubha Gokhale, Vandna Luthra","doi":"10.1007/s10948-023-06534-3","DOIUrl":"10.1007/s10948-023-06534-3","url":null,"abstract":"<div>MnFe2-xYbxO4 nanoparticles (x = 0, 0.025, 0.075, 0.1, 0.15, and 0.2) are synthesized using the co-precipitation method. The influence of rare earth Yb3+ doping on the manganese ferrite is investigated by techniques such as x-ray diffraction (XRD) and field effect scanning electron microscopy (FESEM). The magnetic properties were measured using vibrating sample magnetometer (VSM) at temperatures of 5 K and 300 K. XRD results show the formation of undoped and Yb3+-doped manganese ferrite nanoparticles. Crystallite size calculated using XRD reveals that it is doping concentration dependent. FESEM images reveal the formation of faceted nanoparticles for undoped sample and spherical shape for x = 0.025–0.2. Energy-dispersive X-ray spectroscopy (EDS) shows that Yb3+ ions are successfully incorporated into manganese ferrite. Saturation magnetization, coercivity, retentivity, squareness ratio, thickness of the dead layer, magnetic moment, and anisotropy constant are determined at 5 K and 300 K. These studies show dependence of these parameters on the amount of doping.</div>","PeriodicalId":669,"journal":{"name":"Journal of Superconductivity and Novel Magnetism","volume":"36 3","pages":"1033 - 1041"},"PeriodicalIF":1.8,"publicationDate":"2023-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10948-023-06534-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4829849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation and Properties of FeGa/AlN Magnetoelectric Device with Typical Topological Structures 典型拓扑结构FeGa/AlN磁电器件的制备与性能研究

IF 1.8 4区物理与天体物理

Journal of Superconductivity and Novel Magnetism Pub Date : 2023-03-20 DOI: 10.1007/s10948-023-06539-y

Xiao Zhang, Fan Li, Tianxin Wu, Jie Zhu

引用次数: 0

High-Entropy Superconducting Oxides (Y,Nd,Eu,Sm,Ho)Ba2Cu3Oy with Different Oxygen Contents 不同氧含量的高熵超导氧化物(Y,Nd,Eu,Sm,Ho)Ba2Cu3Oy

IF 1.8 4区物理与天体物理

Journal of Superconductivity and Novel Magnetism Pub Date : 2023-03-17 DOI: 10.1007/s10948-023-06538-z

Stepan Pryanichnikov, Larisa Vidmid’, Svetlana Titova

引用次数: 0

Effectiveness of Two Pinning Profiles in Controlling Magnetic Critical Current Density in YBCO + YCMO Composites 两种钉接型控制YBCO + YCMO复合材料磁临界电流密度的有效性

IF 1.8 4区物理与天体物理

Journal of Superconductivity and Novel Magnetism Pub Date : 2023-03-16 DOI: 10.1007/s10948-023-06533-4

Tasaul Sk, Probhu Mandal, Souvik Haldar, Ajay Kumar Ghosh

{"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":"10.1007/s10948-023-06533-4","url":null,"abstract":"<div>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.\u0000</div>","PeriodicalId":669,"journal":{"name":"Journal of Superconductivity and Novel Magnetism","volume":"36 3","pages":"863 - 869"},"PeriodicalIF":1.8,"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":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4946245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis and Characterization of CaFe1.925Gd0.025Sm0.05O4/PEG Core–Shell Nanoparticles for Diverse Applications 不同用途CaFe1.925Gd0.025Sm0.05O4/PEG核壳纳米粒子的合成与表征

IF 1.8 4区物理与天体物理

Journal of Superconductivity and Novel Magnetism Pub Date : 2023-03-16 DOI: 10.1007/s10948-023-06535-2

Ebtesam E. Ateia, Y. A. Saeid, M. K. Abdelmaksoud

{"title":"Synthesis and Characterization of CaFe1.925Gd0.025Sm0.05O4/PEG Core–Shell Nanoparticles for Diverse Applications","authors":"Ebtesam E. Ateia, Y. A. Saeid, M. K. Abdelmaksoud","doi":"10.1007/s10948-023-06535-2","DOIUrl":"10.1007/s10948-023-06535-2","url":null,"abstract":"<div>The core–shell structure has been studied by coating polyethylene glycol (PEG) on rare-earth-doped calcium ferrite nanoparticles (RCFNPs). RCFNPs are successfully synthesized in the formula CaFe1.925Gd0.025Sm0.05O4 by the citrate nitrate auto-combustion method. The XRD pattern of PEG-coated RCFNPs observed two peaks at 19.3° and 23.6° confirming the existence of PEG, while the other peaks are attributed to the orthorhombic structure formation. The obtained samples exhibit an orthorhombic single-phase structure with an average crystallite size in the range of 18–20 nm. The elemental analysis is performed using EDAX and XPS. The doublet spectrum of Fe atoms corresponds to the valence states Fe 2P1/2 and Fe 2P3/2. High-resolution transmission electron microscopy (HRTEM) revealed a well-designed hexagonal core/shell structure represented as a unique hexagonal PEG shell coating the synthesized RCFNPs. The magnetic hysteresis loops have been recorded using VSM. The coupling between the unpaired electrons of Fe+3 and Sm+3 ions via the p orbitals of the O−2 ions leads to the antiferromagnetic alignment. The smaller values of the switching-field distribution (SFD) and higher coercivity of the prepared samples are most appropriate for ultra-high-density recording performance. The behavior of dielectric parameters is explained on the basis of the interfacial polarization and the Maxwell–Wagner polarization models. Diffuse reflectance spectroscopy (DRS) is used to study the performance of electromagnetic reflection and estimate the optical band gaps of the samples. The obtained data shows that the coating has an important role in enhancing the reflection by up to 50%.\u0000</div>","PeriodicalId":669,"journal":{"name":"Journal of Superconductivity and Novel Magnetism","volume":"36 3","pages":"1011 - 1024"},"PeriodicalIF":1.8,"publicationDate":"2023-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10948-023-06535-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4653424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

AC Susceptibility and Electrical Properties of BiFeO3 Nanoparticles Added Bi1.6Pb0.4Sr2Ca2Cu3O10 Superconductor 添加Bi1.6Pb0.4Sr2Ca2Cu3O10超导体的BiFeO3纳米粒子的交流磁化率和电性能

IF 1.8 4区物理与天体物理

Journal of Superconductivity and Novel Magnetism Pub Date : 2023-03-16 DOI: 10.1007/s10948-023-06540-5

Nurul Raihan Mohd Suib, A. B. P. Ilhamsyah, Madihah Mujaini, A. M. Mahat, R. Abd-Shukor

{"title":"AC Susceptibility and Electrical Properties of BiFeO3 Nanoparticles Added Bi1.6Pb0.4Sr2Ca2Cu3O10 Superconductor","authors":"Nurul Raihan Mohd Suib, A. B. P. Ilhamsyah, Madihah Mujaini, A. M. Mahat, R. Abd-Shukor","doi":"10.1007/s10948-023-06540-5","DOIUrl":"10.1007/s10948-023-06540-5","url":null,"abstract":"<div>The effect of bismuth ferrite (BiFeO3) nanoparticles (~ 20 nm) on Bi1.6Pb0.4Sr2Ca2Cu3O10 (Bi-2223) superconductor was studied. Bi-2223 powders with starting formula Bi1.6Pb0.4Sr2Ca2Cu3O10(BiFeO3)x for x = 0–0.20 wt.% were prepared using the co-precipitation method. The temperature dependent electrical resistance measurements showed the highest superconducting transition temperature for the x = 0.10 wt. % sample (Tc-onset = 118 K, Tc-zero = 106 K). The highest transport critical current density, Jct at 40 K was shown by the x = 0.02 wt. % sample (21.93 A cm−2). The peak temperature of imaginary part of susceptibility, Tp was much higher compared with the non-added sample, indicating BiFeO3 nanoparticles enhanced the flux pinning energy and intergranular coupling. The addition of a small amount of BiFeO3 nanoparticles (0.02–0.04% wt.%) increased the transport critical current density while further additions (0.06–0.20 wt.%) improved the superconducting transition temperatures. BiFeO3 nanoparticles slightly suppressed the formation of the Bi-2223 phase, but it increased the transport critical current density by more than eleven times demonstrating BFO could act as effective pinning centres and enhanced connectivity between grains. This work showed that BiFeO3 was better than other nanoparticles such as Ni0.5Zn0.5Fe2O4, Cr2O3, NiFe2O4, MgO, ZnO and Co3O4 in improving the transition temperatures and critical current density of the Bi-2223 phase superconductor.\u0000</div>","PeriodicalId":669,"journal":{"name":"Journal of Superconductivity and Novel Magnetism","volume":"36 3","pages":"1003 - 1010"},"PeriodicalIF":1.8,"publicationDate":"2023-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4655449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Magneto-Thermal, Mechanical, and Opto-electronic Properties of (Sr_{2}MWO_{6} (M=V,;Rh,;Ru)): Ab Initio Study (Sr_{2}MWO_{6} (M=V,;Rh,;Ru))的磁热、机械和光电性质:从头算研究

IF 1.8 4区物理与天体物理

Journal of Superconductivity and Novel Magnetism Pub Date : 2023-03-15 DOI: 10.1007/s10948-023-06537-0

A. Abbassi, M. Agouri, F. Iacomi, B. Manaut, B. Elhadadi

{"title":"Magneto-Thermal, Mechanical, and Opto-electronic Properties of (Sr_{2}MWO_{6} (M=V,;Rh,;Ru)): Ab Initio Study","authors":"A. Abbassi, M. Agouri, F. Iacomi, B. Manaut, B. Elhadadi","doi":"10.1007/s10948-023-06537-0","DOIUrl":"10.1007/s10948-023-06537-0","url":null,"abstract":"<div>Various properties of (Sr_{2}MWO_{6} (M=V,;Rh,;Ru)) are investigated based on the DFT theory using the full-potential linearized augmented plane wave (FP-LAPW) method. Their magnetic properties show a half metallic bahavior for (M= V) and Rh with high magnetic moments. However, for (Sr_{2}RuWO_{6}), the bands for up and down spins are symmetric and thus this material is non-magnetic with an energy band gap of (1.4;eV). The presence of Ru and Rh in (Sr_{2}MWO_{6}) structure increases the absorption of this material, especially in the visible light range. The elastic constants (C_{alpha beta }) for all studied compounds were obtained using Elastic1.1 and satisfy the Born stability criterion. This indicates that all the compounds are mechanically stable. Finally, electrical properties were determined using BoltzTraP package leading to interesting aspects. The obtained results are comparable with other perovskite phases. Therefore, these coupled features of the title compounds make them promising material for different applications.</div>","PeriodicalId":669,"journal":{"name":"Journal of Superconductivity and Novel Magnetism","volume":"36 3","pages":"995 - 1001"},"PeriodicalIF":1.8,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4619443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Tailoring of the Uniaxial Anisotropy of Amorphous Films by Oblique Sputtering and In-Situ Magnetic Fields 斜溅射和原位磁场裁剪非晶膜的单轴各向异性

IF 1.8 4区物理与天体物理

Journal of Superconductivity and Novel Magnetism Pub Date : 2023-03-10 DOI: 10.1007/s10948-023-06528-1

Fuchao Huang, Xia Chen, Longyu Chen, Yi Lu, Jia Ran, Yu Liu, Dandan Wen

{"title":"Tailoring of the Uniaxial Anisotropy of Amorphous Films by Oblique Sputtering and In-Situ Magnetic Fields","authors":"Fuchao Huang, Xia Chen, Longyu Chen, Yi Lu, Jia Ran, Yu Liu, Dandan Wen","doi":"10.1007/s10948-023-06528-1","DOIUrl":"10.1007/s10948-023-06528-1","url":null,"abstract":"<div>In order to research the effect of applied magnetic field direction on magnetic properties during oblique sputtering, in this paper, a magnetic field is applied along (or perpendicular to) in-plane projection of the incident direction of the sputtering atomic beam. VSM and magnetic spectrum results show that the applied magnetic field direction greatly affects the uniaxial anisotropy, thereby affecting the ferromagnetic resonance frequency. It was found by AFM and cross-sectional SEM that the morphology of the film and the angle of the inclined columnar crystal were completely different when the magnetic field was applied in different directions. When a magnetic field is applied along the in-plane projection of the incident direction of the sputtering atomic beam, the angle between the columnar crystal and the normal direction of the substrate is about 30°. When the magnetic field is applied to the in-plane projection perpendicular to the incident direction of the sputtering atomic beam, the columnar crystal can be seen vaguely, and there is basically no inclination angle. In addition, when the tilt angle is constant, the uniaxial anisotropy increases with the increase of target-substrate distance, which is caused by the increase of the electron beam inflow angle.</div>","PeriodicalId":669,"journal":{"name":"Journal of Superconductivity and Novel Magnetism","volume":"36 3","pages":"987 - 994"},"PeriodicalIF":1.8,"publicationDate":"2023-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4429960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of the Precursor Powder on the Processing Window and Current-Carrying Property of Bi-2212 Wires 前驱体粉末对Bi-2212导线加工窗口及载流性能的影响

IF 1.8 4区物理与天体物理

Journal of Superconductivity and Novel Magnetism Pub Date : 2023-03-08 DOI: 10.1007/s10948-023-06531-6

Zhenbao Li, Guoqing Liu, Kai Yao, Gaofeng Jiao, Xiaoyan Xu, Qingbin Hao, Lihua Jin, Chengshan Li

{"title":"Influence of the Precursor Powder on the Processing Window and Current-Carrying Property of Bi-2212 Wires","authors":"Zhenbao Li, Guoqing Liu, Kai Yao, Gaofeng Jiao, Xiaoyan Xu, Qingbin Hao, Lihua Jin, Chengshan Li","doi":"10.1007/s10948-023-06531-6","DOIUrl":"10.1007/s10948-023-06531-6","url":null,"abstract":"<div>Four batches of Bi-2212 precursor powders prepared by both the co-precipitation method (CP) and the spray pyrolysis technology (SP) with two compositions (Bi:Sr:Ca:Cu = 2.17:1.94:0.89:2.00, 2.07:1.94:0.89:2.00) were obtained. The feature of the powder was firstly characterized. The faster phase evolution and lower melting temperature range (△T) of the precursor powder prepared by SP proved that Bi-2212 powder can be obtained by SP with both a higher preparation efficiency and better composition homogeneity. Then the current-carrying property and microstructure of these wires made from these powders were analyzed comprehensively. The property of the wires was proved to be influenced by the feature of these precursor powders a lot. Wires made by the precursor powder with the better composition homogeneity and higher phase purity were confirmed to hold a larger processing window (Tp). In addition, the decrease of the planar size of Bi-2212 crystals was discovered to improve both the machining homogeneity and texture of the wire. What’s more, both the better composition homogeneity of the precursor powder and the larger width of Bi-2212 crystals were found to improve both the interior texture and connectivity of Bi-2212 filaments. For the first time, the article provided quite specific directions to improve the quality of the precursor powder so as to both broaden Tp and enhance the current-carrying property of Bi-2212 wires.</div>","PeriodicalId":669,"journal":{"name":"Journal of Superconductivity and Novel Magnetism","volume":"36 3","pages":"843 - 861"},"PeriodicalIF":1.8,"publicationDate":"2023-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4351780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0