Superconductivity最新文献

{"title":"Corrigendum to “An extended T-A formulation based on potential-chain recursion for electromagnetic modeling of parallel-wound no-insulation HTS coils” [Supercond 19 (2026) 100278]","authors":"Zhe Pan, Qi Xu, Ruixiang Wang, Zhenghao Jin, Jianzhao Geng","doi":"10.1016/j.supcon.2026.100282","DOIUrl":"10.1016/j.supcon.2026.100282","url":null,"abstract":"","PeriodicalId":101185,"journal":{"name":"Superconductivity","volume":"19 ","pages":"Article 100282"},"PeriodicalIF":9.2,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148853983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Insights into radiation damage in YBa2Cu3O7−δ from machine learned interatomic potentials","authors":"Ashley Dickson ,&nbsp;Niccolò Di Eugenio ,&nbsp;Federico Ledda ,&nbsp;Daniele Torsello ,&nbsp;Francesco Laviano ,&nbsp;Flyura Djurabekova ,&nbsp;Jesper Byggmästar ,&nbsp;Mark R. Gilbert ,&nbsp;Duc Nguyen-Manh ,&nbsp;Erik Gallo ,&nbsp;Antonio Trotta ,&nbsp;Davide Gambino ,&nbsp;Samuel T. Murphy","doi":"10.1016/j.supcon.2026.100264","DOIUrl":"10.1016/j.supcon.2026.100264","url":null,"abstract":"<div><div>Accurate prediction of radiation damage in YBa₂Cu₃O<span><math><msub><mrow></mrow><mrow><mn>7</mn><mo>−</mo><mi>δ</mi></mrow></msub></math></span> (YBCO) is essential for assessing the performance of high-temperature superconducting (HTS) tapes in compact fusion reactors. Existing empirical interatomic potentials have been used to model radiation damage in stoichiometric YBCO, but fail to describe oxygen-deficient compositions, which are ubiquitous in industrial Rare-Earth Barium Copper Oxide conductors and strongly influence superconducting properties. In this work, we demonstrate that modern machine-learned interatomic potentials enable predictive modelling of radiation damage in YBCO across a broad range of oxygen stoichiometries, at a greater fidelity than previous empirical models. We employ two recently developed approaches: an Atomic Cluster Expansion (ACE) potential and a tabulated Gaussian Approximation Potential (tabGAP). Both machine-learned models are shown to accurately reproduce Density Functional Theory (DFT) energies, forces, and threshold displacement energy distributions, providing a quantitatively reliable description of atomic-scale collision processes. Molecular dynamics simulations of 5 keV cascades predict significantly enhanced peak defect production and recombination relative to a previous empirical potential, indicating qualitatively different cascade evolution. Moreover, these new machine learning models generate increased proportions of copper and oxygen vacancies compared to previous models, in direct agreement with experimental observations. By explicitly varying oxygen deficiency, we further show that total defect production exhibits only a weak dependence on stoichiometry, providing new insight into the robustness of radiation damage processes in oxygen-deficient YBCO. Finally, fusion-relevant 300 keV cascade simulations reveal amorphous regions with characteristic dimensions comparable to the superconducting coherence length, consistent with electron microscopy observations of neutron-irradiated HTS tapes. These results establish machine-learned interatomic potentials as powerful, computationally efficient tools for uncovering radiation-damage physics in YBCO, enabling predictive simulations across technologically relevant compositions and irradiation conditions.</div></div>","PeriodicalId":101185,"journal":{"name":"Superconductivity","volume":"18 ","pages":"Article 100264"},"PeriodicalIF":6.2,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148241464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Combined microwave analysis of vortex pinning and HAADF-STEM structural characterization of YBCO films with columnar defects","authors":"Gianluca Ghigo ,&nbsp;Mario Scuderi ,&nbsp;Michela Fracasso ,&nbsp;Roberto Gerbaldo ,&nbsp;Daniele Torsello ,&nbsp;Laura Gozzelino","doi":"10.1016/j.supcon.2026.100265","DOIUrl":"10.1016/j.supcon.2026.100265","url":null,"abstract":"<div><div>We report on a systematic investigation of the effects of columnar defects induced by heavy ion irradiation in YBa₂Cu₃O<span><math><msub><mrow></mrow><mrow><mn>7</mn><mo>−</mo><mi>δ</mi></mrow></msub></math></span> thin films. The study encompasses their structural characterization by transmission electron microscopy imaging (HAADF-STEM) and their impact on the vortex-pinning parameters, determined in the microwave frequency range by a coplanar waveguide resonator (CPWR) technique. The films were irradiated with 1.15-GeV Pb ions, and the resulting columnar defects revealed a core-shell structure with an amorphous core surrounded by a strained crystalline shell. Statistical analysis (considering any cluster as an individual defect) yield a mean column radius of <span><math><mrow><mi>r</mi><mo>=</mo><mn>6</mn><mspace></mspace><mtext>nm</mtext></mrow></math></span>, which is in remarkable agreement with the radius of the confinement region obtained from fitting the irreversibility line within the Bose-glass model, <span><math><mrow><msub><mi>r</mi><mn>0</mn></msub><mo>=</mo><mn>5.8</mn><mspace></mspace><mtext>nm</mtext></mrow></math></span>, providing strong experimental validation of the functional characterization through direct structural imaging. The core of the analysis lies in the determination of the main superconducting parameters (such as the penetration depth) and the vortex dynamics and pinning parameters – including the pinning constant, viscosity, depinning and crossover frequencies, creep factor, and pinning energy – through the CPWR microwave technique. These parameters are analyzed and discussed within the theoretical frameworks proposed by Gittleman–Rosenblum, Coffey–Clem, and Blatter et al. Overall, columnar defects were found to enhance the pinning efficiency and, consequently, the critical current density <em>j_c</em> and its ratio to the depairing current density, <em>j_c</em>/<em>j</em>₀. To determine their absolute values, a comparative analysis was carried out by combining results from the different experimental techniques with a theoretical treatment of <em>j_c</em>/<em>j</em>₀ as a function of the STEM-measured column radius. All results converge into a consistent framework, yielding <span><math><mrow><msub><mi>j</mi><mi>c</mi></msub><mrow><mo>(</mo><mn>5</mn><mspace></mspace><mi>K</mi><mo>,</mo><mn>1</mn><mspace></mspace><mi>T</mi><mo>)</mo></mrow><mo>=</mo><mn>8.8</mn><mo>·</mo><msup><mn>10</mn><mn>11</mn></msup><mspace></mspace><mrow><msup><mtext>Am</mtext><mrow><mo>−</mo><mn>2</mn></mrow></msup></mrow></mrow></math></span> and <span><math><mrow><msub><mi>j</mi><mi>c</mi></msub><mo>/</mo><msub><mi>j</mi><mn>0</mn></msub><mo>=</mo><mn>0.34</mn></mrow></math></span> for the YBCO films with irradiation-induced columnar defects.</div></div>","PeriodicalId":101185,"journal":{"name":"Superconductivity","volume":"18 ","pages":"Article 100265"},"PeriodicalIF":6.2,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148184311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Active controllable rotary superconducting magnetic bearings based on flux-pumped closed-loop coils","authors":"Zhenghao Jin ,&nbsp;Qi Xu ,&nbsp;Yi Lin ,&nbsp;Ying Xu ,&nbsp;Jianzhao Geng","doi":"10.1016/j.supcon.2026.100261","DOIUrl":"10.1016/j.supcon.2026.100261","url":null,"abstract":"<div><div>High-temperature superconducting (HTS) bulk-based magnetic bearings possess the advantages of self-stability and are well-suited for high-speed rotary systems. However, they suffer from levitation force decay issues and lack of controllability, which restrict their practical applications. To address these limitations, this paper presents the design and experimental validation of self-stable and actively controllable rotary superconducting magnetic bearings (SMBs) based on flux-pumped closed-loop HTS coils. The closed-loop HTS coils provide self-stability, and the integrated self-rectifier flux pumps wirelessly provide real-time magnetic flux modulation, allowing active adjustment of the levitation status. Experimental results show that the proposed system can: (i) eliminate levitation height decay, maintaining the rotor height within ±0.1 mm up to 3600 rpm; (ii) provide 10-mm dynamic levitation height control with high tracking accuracy; and (iii) actively counteract external axial loads of ±15 N, improving the effective axial stiffness. Furthermore, the influence of active flux modulation on axial self-stability is experimentally investigated. As the flux modulation intensity increases, the axial restoring force is progressively weakened, and the self-stability region correspondingly shrinks. These results demonstrate that flux-pumped closed-loop HTS coils enable actively controllable SMBs while preserving self-stability, offering a potentially feasible approach for applications such as flywheel energy storage systems and maglev motors.</div></div>","PeriodicalId":101185,"journal":{"name":"Superconductivity","volume":"18 ","pages":"Article 100261"},"PeriodicalIF":6.2,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148184312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correlated defect formation and pinning enhancement in 230 MeV Au-ion-irradiated superconducting Fe(Se,Te) thin films","authors":"Francesco Rizzo ,&nbsp;Mario Scuderi ,&nbsp;Valeria Braccini ,&nbsp;Emilio Bellingeri ,&nbsp;Michela Iebole ,&nbsp;Alberto Martinelli ,&nbsp;Nicola Manca ,&nbsp;Matteo Cialone ,&nbsp;Marina Putti ,&nbsp;Andrea Augieri ,&nbsp;Laura Piperno ,&nbsp;Angelo Vannozzi ,&nbsp;Maria Laura Amoruso ,&nbsp;Fortunato Neri ,&nbsp;Michela Fracasso ,&nbsp;Roberto Gerbaldo ,&nbsp;Gianluca Ghigo ,&nbsp;Daniele Torsello ,&nbsp;Laura Gozzelino","doi":"10.1016/j.supcon.2026.100262","DOIUrl":"10.1016/j.supcon.2026.100262","url":null,"abstract":"<div><div>Intrinsic properties of Fe(Se,Te), such as the high value of the upper critical field as well as the weaker dependence of the critical current density (<em>J</em>_c) on the grain misalignment than in cuprate superconductors, make this compound a promising candidate for the fabrication of high-field superconducting magnets. On the other hand, irradiation was demonstrated to be a powerful tool for tuning the pinning properties in superconducting materials. In this paper, we investigate the effect of 230 MeV Au-ion irradiation on <em>J</em>_c and pinning force (<em>F</em>_p) of biaxially-oriented Fe(Se,Te) films grown on YSZ substrate buffered with a thin Zr-doped CeO₂ epitaxial layer. This structure is interesting as it can be considered a precursor template for Fe(Se,Te) coated conductors. The irradiation produces correlated defects, which - on transmission electron microscope analysis - appear as slightly meandering tracks composed of dislocation chains placed parallel to the <em>c</em>-axis of the crystal lattice. The <em>J</em>_c measurements as a function of the applied magnetic field evidence an improvement at low temperatures, with a maximum modulated in both position and height by the irradiation fluence. In the same range of temperature, the development of the irradiation tracks strongly reduces the anisotropy of the critical current density by varying the applied field orientation. Likewise, the <em>F</em>_p analysis highlights that irradiation defects behave as two-dimensional extended defects, which strengthen the point-pinning landscape active before irradiation. Conversely, approaching the transition temperature, the effectiveness of the irradiation-induced defects decreases and a widespread <em>J</em>_c and <em>F</em>_p worsening occurs.</div></div>","PeriodicalId":101185,"journal":{"name":"Superconductivity","volume":"18 ","pages":"Article 100262"},"PeriodicalIF":6.2,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148184314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fracture behavior of high-temperature superconducting filmswith an edge slit produced by flux avalanches","authors":"Wenyu Jia ,&nbsp;Lu Jiang ,&nbsp;Cun Xue ,&nbsp;Jianlin Liu","doi":"10.1016/j.supcon.2025.100222","DOIUrl":"10.1016/j.supcon.2025.100222","url":null,"abstract":"<div><div>In type-II superconducting films, the metastable state can be disrupted by flux avalanches, leading to severe degradation of the electromagnetic properties and irreversible damage to the material in even relatively lower fields. In this study, an electrical-magnetic-thermal-mechanical coupling model is developed to investigate the electromagnetic and mechanical responses of YBa₂Cu₃O<span><math><msub><mrow></mrow><mrow><mn>7</mn><mo>−</mo><mi>δ</mi></mrow></msub></math></span> (YBCO) superconducting films with an edge slit during the flux avalanche, taking into account the effects of the edge slit on the triggering of the first flux avalanche. The distribution of magnetic field, temperature, and stress within the superconducting film, as well as the initiation and propagation of crack is numerically simulated by combining the Fast Fourier Transform (FFT) method and the Extended Finite Element Method (XFEM), allowing for an in-depth analysis of the fracture mechanism. The results indicate that thermal stress induced by magnetic flux avalanches is the dominant driving force behind the initiation and propagation of cracks, which has also previously been observed at the trunk of the dendritic flux avalanche in the YBCO superconducting film. Detailed analyzes are performed to discuss the influence of the working temperature, magnetic field ramp rate, and edge slit geometry on crack behavior. It is found that higher working temperatures lead to larger-scale avalanches and more pronounced non-uniform temperature rises, thereby significantly increasing fracture risk. Moreover, the applied magnetic field with lower ramp rates is more likely to induce fracture during the first flux avalanche. As for edge slit geometry, smaller edge slit widths or lengths intensify local heating and thermal stress concentration, further promoting crack propagation.</div></div>","PeriodicalId":101185,"journal":{"name":"Superconductivity","volume":"17 ","pages":"Article 100222"},"PeriodicalIF":6.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146078663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A novel Pre-HIP two-step annealing process for enhancing the critical current of Ba1-xKxFe2As2 superconducting tapes","authors":"Xiao Liu ,&nbsp;Hongjun Ma ,&nbsp;Chao Wang ,&nbsp;ZhiHong Ren ,&nbsp;He Huang ,&nbsp;Yanchang Zhu ,&nbsp;Meng Han ,&nbsp;Xianping Zhang ,&nbsp;Dongliang Wang ,&nbsp;Chiheng Dong ,&nbsp;Yanwei Ma ,&nbsp;Yi Shi ,&nbsp;Jinggang Qin ,&nbsp;Chao Zhou ,&nbsp;Huajun Liu ,&nbsp;Fang Liu","doi":"10.1016/j.supcon.2025.100221","DOIUrl":"10.1016/j.supcon.2025.100221","url":null,"abstract":"<div><div>Iron-based superconductors (IBSs) are compelling candidates for high-field magnet applications due to their excellent intrinsic properties. The hot isostatic pressing (HIP) effectively enhances their critical current density by increasing core density. However, IBS tapes are highly stress-sensitive after heat treatment. This necessitates fabricating magnets prior to the HIP process. Consequently, the requirement for large-volume HIP furnaces for full-scale magnets presents significant technological and cost barriers. To circumvent this manufacturing bottleneck, this paper introduces a novel “pre-HIP” two-step annealing process. The principle involves an initial, low-temperature HIP (pre-HIP) heat treatment on IBS tapes to achieve densification. Subsequently, the tapes are wound into the desired magnet or conductor geometry, followed by a final heat treatment at atmospheric pressure (AP). This strategy allows large-scale magnets to be treated in conventional, cost-effective furnaces. We systematically evaluated the effect of the pre-HIP temperature (370-450 °C at 50 MPa) on the transport properties and bend performance of 7-filamentary Ba_1-xK_xFe₂As₂ (Ba-122) tapes. Results show that pre-HIP significantly enhances the critical current. However, a critical trade-off was identified: higher pre-HIP temperatures yield superior critical performance but induce local grain growth, causing severe degradation during bending. Samples pre-HIP at 370 °C retained 78 % of their initial performance after bending to 10 mm diameter, whereas the 450 °C samples degraded significantly. This study confirms that pre-HIP is a cost-effective method to improve IBS magnet performance when the optimal temperature is selected.</div></div>","PeriodicalId":101185,"journal":{"name":"Superconductivity","volume":"17 ","pages":"Article 100221"},"PeriodicalIF":6.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145842483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Opportunities and challenges of offshore direct drive high-temperature superconducting wind turbine generators","authors":"Zhen Huang ,&nbsp;Zequn Ke ,&nbsp;Tim A. Coombs","doi":"10.1016/j.supcon.2025.100230","DOIUrl":"10.1016/j.supcon.2025.100230","url":null,"abstract":"<div><div>Offshore direct drive high-temperature superconducting (HTS) wind turbine generators, a key application of superconductors in the energy sector, are entering a phase of commercial opportunity. In the wind power industry, one clear trend is the increasing power rating of units: current models exceed 15 MW, with over 20 MW generators emerging. For such high-power units, the high power density of superconducting generators minimizes mass and material usage, thereby achieving a higher power-to-weight ratio. Beyond power scaling, another trend is the deployment of wind turbines in deep waters to tap into more abundant wind resources and reduce the need for onshore land; however, operating expenditure (OpEx) in deep waters drives increased demand for reliability. HTS generators operate without a gearbox, offering a reliability advantage—especially critical in deep waters subject to multiple excitations and strong dynamic loads. As a result, modular direct drive HTS generators are increasingly becoming the preferred choice for this scenario. Modularization—dividing the generator's rotor and stator into symmetrical sectors and assembling them at the end of the production chain—facilitates manufacturing, transportation, installation, and replacement. Notably, the price of HTS tape has been declining lately, a trend driven by the surge in compact magnetic confinement fusion reactors. This reduction lowers the capital expenditure (CapEx) of superconducting generators, enhances market competitiveness, and underpins research into high-magnetomotive force (MMF) machine designs. Nevertheless, HTS generator design and manufacturing are system-level endeavors, involving trade-offs across electromagnetic, thermal, and mechanical aspects that demand targeted optimization and rigorous reliability testing.</div></div>","PeriodicalId":101185,"journal":{"name":"Superconductivity","volume":"17 ","pages":"Article 100230"},"PeriodicalIF":6.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145886236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of bending on microstructure and transport properties of filamentized high-temperature superconductor tapes manufactured by low-cost industrial process","authors":"R. Ries ,&nbsp;M. Solovyov ,&nbsp;T. Kujovič ,&nbsp;J. Šouc ,&nbsp;F. Gömöry ,&nbsp;E. Cuninková ,&nbsp;M. Pekarčíková ,&nbsp;C. Hintze ,&nbsp;S. Landvogt ,&nbsp;C.R.H. Bahl ,&nbsp;M.B. Brock-Hansen ,&nbsp;J.J. Christiansen ,&nbsp;N. Olden-Jørgensen ,&nbsp;A.C. Wulff","doi":"10.1016/j.supcon.2026.100233","DOIUrl":"10.1016/j.supcon.2026.100233","url":null,"abstract":"<div><div>Progress in the manufacturing of the 2nd generation of electrical conductors based on high-temperature superconducting (HTS) compounds, commonly known as coated conductors (CC), has sparked interest in various fields of application, including large magnetic systems for nuclear fusion and particle accelerators. To achieve the required electrical transport capacity in the kA range, tens of tapes must be assembled into a cable. Then, knowing the vulnerability of individual tapes to mechanical deformation is essential. We studied the behaviour of filamentized CC tapes with REBCO layer deposited on patterned substrate. Before this study, it was not clear whether such superconductor filamentization would affect the minimum core diameter, <em>D</em>_{<em>c,min</em>}, at which it still retains the transport capability. In the first stage, a set of 12 mm wide research samples, prepared with various number of filaments, underwent off-axis bending tests. Microstructural investigation then enabled understanding of the observed fact that the filamentary architecture did not cause any visible loss of transporting capability. In the study continuation, we compared the off-axis bending performance of short samples taken from 4 mm wide tapes produced industrially in lengths exceeding 100 m. Encouragingly, these filamentized tapes exhibited an endurance comparable to that of an equivalent non-filamentized tapes. Finally, in the last part of the study, simple models of round cables containing longer pieces (30 cm) of filamentized tape wrapped around a round core were tested. Some deterioration of performance was observed, relative to previous tests when only ∼1 cm long portion of tape was affected. Nevertheless, the observed 100 % retention of critical current when bending the 4 mm wide filamentized tape on a 5.5 mm central core represents an important input to further discussion about adopting filamentized tapes, thanks to their better electromagnetic behaviour, in cables for future nuclear fusion reactors and particle accelerator magnets.</div></div>","PeriodicalId":101185,"journal":{"name":"Superconductivity","volume":"17 ","pages":"Article 100233"},"PeriodicalIF":6.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146078661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design and tests of a superconducting magnet system for demonstration operation in orbit","authors":"Nicholas M. Strickland ,&nbsp;Max Goddard-Winchester ,&nbsp;Cameron Shellard ,&nbsp;Stuart C. Wimbush ,&nbsp;Jamal R. Olatunji ,&nbsp;Betina E. Pavri ,&nbsp;Xiyong Huang ,&nbsp;Benjamin P.P. Mallett ,&nbsp;Konstantinos Bouloukakis ,&nbsp;Benjamin Parkinson ,&nbsp;Nicholas J. Long ,&nbsp;Avinash A. Rao ,&nbsp;Randy Pollock","doi":"10.1016/j.supcon.2026.100231","DOIUrl":"10.1016/j.supcon.2026.100231","url":null,"abstract":"<div><div>Applied-field magnetoplasmadynamic (AF-MPD) thrusters have been proposed as highly propellant-efficient thrusters for satellites and spacecraft. The electromagnets for these devices have only been reducible to practical dimensions with the maturation of high-temperature superconductors. We report the development and ground testing of such a magnet which has been designed and constructed with the intention of deploying to the International Space Station and testing in orbit. The magnet is of dimensions suitable for accommodating a small thruster, will be cooled by a miniature space-compatible cryocooler and energized by a flux pump. It can generate a magnetic field of up to 760 mT operating at around 77 K in that configuration. A passive magnetic shield has been incorporated in order to comply with stray-field requirements of the ISS when operating at the target operational field of 300 mT.</div></div>","PeriodicalId":101185,"journal":{"name":"Superconductivity","volume":"17 ","pages":"Article 100231"},"PeriodicalIF":6.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145927408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}