Effect of Simultaneous Addition of 1D and 3D Artificial Pinning Centers in Hybrid YBa2Cu3O7–x Multilayers

Mele, Paolo; Adam, Malik I.; Suzuki, Takashi; Yoshida, Yutaka; Awaji, Satoshi; Ichinose, Ataru; Saini, Shrikant; Jha, Alok K.; Matsumoto, Kaname

doi:10.1166/sam.2017.2848

Cited by 10 publications

(6 citation statements)

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“…Successful incorporations of different combinations of nanocolumns and nanoparticles into YBCO thin films were later reported in which BSO nanocolumns and Y211 nanoparticles [132], BZO nanocolumns and BaCeO 3 nanoparticles [134], and BHO nanocolumns and YO nanoparticles [135] were simultaneously incorporated into YBCO thin films, which resulted in superior in-field J c performance with reduced anisotropy. Hybrid APCs were also incorporated in the form of segmented BSO nanocolumns [136] and segmented nanocolumns with YO nanoparticles [137].…”

Section: Incorporation Of Hybrid Apcs Into Rebco Thin Filmsmentioning

confidence: 99%

Superconductive REBCO Thin Films and Their Nanocomposites: The Role of Rare-Earth Oxides in Promoting Sustainable Energy

Jha

Matsumoto

2019

Front. Phys.

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The lossless transmission of direct electrical currents in superconductors is very often regarded as an "energy superhighway" with greatly enhanced efficiency. With the discovery of high temperature superconductors (HTS) in the late eighties, the prospect of using these materials in efficient and advanced technological applications became very prominent. The elevated operating temperatures as compared to low temperature superconductors (LTS), relaxing cooling requirements, and the gradual development of facile synthesis processes raised hopes for a broad breakthrough of superconductor technology. The impact of superconductor technology on the economy and energy sectors is predicted to be huge if these are utilized on a large scale. The development of superconducting tapes with high critical current density (J c) is crucial for their use in transmission cables. Many countries these days are running projects to develop wires from these HTS materials and simultaneously field trials are being conducted to assess the feasibility of this technology. These HTS wires can carry electrical currents more than 100 times larger than their conventional counterparts with minimal loss of energy. The increased efficiency of HTS electric power products may result in greatly reduced carbon emissions compared to those resulting from using the conventional alternatives. In order to use the thin films of YBa 2 Cu 3 O 7−δ (YBCO) and REBCO [RE (rare-earth) = Sm, Gd, Eu etc.], members of the HTS family, for future technological applications, the enhancement of J c over wide range of temperatures and applied magnetic fields is highly desired. The enhancement of J c of YBCO and REBCO films has been successfully demonstrated by employing different techniques which include doping by rare-earth atoms, incorporating nanoscale secondary phase inclusions into the REBCO film matrix, decoration of the substrate surface etc. which generate artificial pinning centers (APCs). In this review, the development of the materials engineering aspect that has been conducted over the last two decades to improve the current carrying capability of HTS thin films is presented. The effect of controlled incorporation of APCs through various methods and techniques on the superconducting properties of YBCO and REBCO thin films is presented, heading toward superior performance of such superconducting thin films.

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Section: Incorporation Of Hybrid Apcs Into Rebco Thin Filmsmentioning

confidence: 99%

Superconductive REBCO Thin Films and Their Nanocomposites: The Role of Rare-Earth Oxides in Promoting Sustainable Energy

Jha

Matsumoto

2019

Front. Phys.

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“…By including nanostructures with appropriate size-and shape-matched foreign phases, the APCs may be incorporated into the YBCO matrix. Nanoparticles of either metal, insulator, semiconductor, or magnetic material of different morphologies, including nanospheres, nanorods, or nanowires, have been successfully incorporated to improve the YBCO's pinning properties [15][16][17][18]. Particularly, oxide nanomaterials proved to be a superior choice to add to bulk YBCO superconductor for a dramatic improvement in pinning properties [19].…”

Section: Introductionmentioning

confidence: 99%

Enhancing pinning ability by the addition of potassium niobate nanorods in YBCO superconductor

Kumar,

Dahiya,

Khare

2023

Phys. Scr.

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In the current study, we have investigated the effect of adding potassium niobate (KNbO3) nanorods (NRs) in YBCO superconductor to improve flux pinning properties. The KNbO3-NRs are synthesized by hydrothermal method, and KNbO3-YBCO nanocomposites are prepared by incorporating variable amounts of the NRs in YBCO matrix by solid-state reaction method. X-ray diffraction (XRD) pattern confirmed the orthorhombic phase of YBCO, KNbO3-NRs, and KNbO3-YBCO nanocomposite samples. The morphology and composition of the YBCO, KNbO3, and KNbO3-YBCO nanocomposites are studied using field emission scanning electron microscopy (FESEM) and energy-dispersive x-ray spectroscopy (EDX). Magnetic measurements of KNbO3-YBCO nanocomposites are carried out at temperatures from 15 to 65 K under an external magnetic field from -7 to + 7 T. The value of critical temperature (TC0) in xKNbO3-YBCO nanocomposites showed no significant decrease from the TC0 value obtained for YBCO, indicating that inserting a modest amount of KNbO3-NRs into the YBCO matrix does not result in substantial changes in TC0. The critical current density (JC) showed an enhancement of ∼ 3.6 times in 0.5wt%KNbO3-YBCO nanocomposite compared to YBCO. Additionally, when the concentration of KNbO3-NRs in YBCO was raised, the critical current density (JC) decreased due to the accumulation of KNbO3-NRs at the interfaces between grain boundaries. The rate of JC decay decreases as the externally applied field increases for nanocomposite samples compared to YBCO, showing an improvement in the pinning properties of nanocomposites.

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“…Specifically, the lateral dimension of the APCs perpendicular to the applied magnetic field (H) are typically larger, on the order of the coherence length or vortex core size that is a few nanometers in HTSs, forming strong vortex pins as confirmed in much enhanced J c (H). In particular, linear APCs aligned along the c-axis of the HTSs have been found effective to address the issue of J c anisotropy with respect to the H orientations stemming from the layered structure of the HTS [7][8][9][10][11]. These c-axis aligned linear APCs can provide strong correlated pinning at H//caxis, as illustrated in a strong J c peak at H//c-axis if H is comparable to or less than the accommodation field H * =n 1D f 0 , where n 1D is the areal density of the linear APCs.…”

Section: Introductionmentioning

confidence: 99%

“…A secondary APC doping provides a promising method for this purpose since a smaller nanorod length and distracted c-axis alignment were observed in 2.6 vol% BZO+2.3 vol% Y 2 O 3 double-doped (DD) YBCO films [29,30]. In addition, the DD approach [8,9,31] has also been explored to generate mixed APC morphologies for combination of pinning benefits from different types APCs. Among several DD methods developed [6-8, 10, 11, 32], direct doping of two types of APCs in starting materials provides a simple approach that can be easily implemented in conductor production.…”

Section: Introductionmentioning

confidence: 99%

Generating mixed morphology BaZrO₃artificial pinning centers for strong and isotropic pinning in BaZrO₃–Y₂O₃double-doped YBCO thin films

Chen

Sebastian

Gautam

et al. 2017

Supercond. Sci. Technol.

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High concentration artificial pinning centers (APCs), such as BaZrO3 nanorods (BZO 1D APCs) aligned along the c-axis of the high temperature superconductor YBa2Cu3O7 (YBCO) can provide strong pinning of magnetic vortices and are desirable for applications in high magnetic fields. Unfortunately, in YBCO films with single-doping (SD) of BZO 1D APCs, a monotonic decreasing superconducting Tc and critical current density Jc(H) with BZO doping has been observed due to strain field overlap at high-concentration perfectly c-axis aligned BZO 1D APCs. In order to resolve this issue, double-doping (DD) of 2–6 vol% BZO 1D APCs and 3.0 vol% Y2O3 nanoparticles (Y2O3-NPs) in YBCO films has been explored to promote BZO-NR orientation misalignment from the c-axis. Remarkably, a monotonic increasing Jc(H) with BZO 1D APCs concentration has been obtained in the BZO DD samples. Such a microstructure change is evidenced in the much smaller c-lattice parameter expansion of 0.103% in the DD samples as opposed to 0.511% in the SD counterparts and reduced c-axis alignment of the BZO 1D APCs as revealed in TEM. This yields a mixed 1D + 2D + 3D APC morphology and enhanced isotropic pinning with respect to the orientation of the H-field in the BZO DD samples.

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Effect of Simultaneous Addition of 1D and 3D Artificial Pinning Centers in Hybrid YBa₂Cu₃O_7–x Multilayers

Cited by 10 publications

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Superconductive REBCO Thin Films and Their Nanocomposites: The Role of Rare-Earth Oxides in Promoting Sustainable Energy

Superconductive REBCO Thin Films and Their Nanocomposites: The Role of Rare-Earth Oxides in Promoting Sustainable Energy

Enhancing pinning ability by the addition of potassium niobate nanorods in YBCO superconductor

Generating mixed morphology BaZrO₃artificial pinning centers for strong and isotropic pinning in BaZrO₃–Y₂O₃double-doped YBCO thin films

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Effect of Simultaneous Addition of 1D and 3D Artificial Pinning Centers in Hybrid YBa2Cu3O7–x Multilayers

Cited by 10 publications

References 0 publications

Superconductive REBCO Thin Films and Their Nanocomposites: The Role of Rare-Earth Oxides in Promoting Sustainable Energy

Superconductive REBCO Thin Films and Their Nanocomposites: The Role of Rare-Earth Oxides in Promoting Sustainable Energy

Enhancing pinning ability by the addition of potassium niobate nanorods in YBCO superconductor

Generating mixed morphology BaZrO3artificial pinning centers for strong and isotropic pinning in BaZrO3–Y2O3double-doped YBCO thin films

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Effect of Simultaneous Addition of 1D and 3D Artificial Pinning Centers in Hybrid YBa₂Cu₃O_7–x Multilayers

Generating mixed morphology BaZrO₃artificial pinning centers for strong and isotropic pinning in BaZrO₃–Y₂O₃double-doped YBCO thin films