Nucleation and mesostrain influence on percolating critical currents of solution derived YBa2Cu3O7 superconducting thin films

Obradors, X.; Martínez-Julián, Fernando; Zalamova, K.; Vlad, Valentina Roxana; Pomar, A.; Palau, Anna; Llordés, Anna; Chen, H.; Coll, Mariona; Ricart, S.; Mestres, N.; Granados, X.; Puig, T.; Rikel, M.O.

doi:10.1016/j.physc.2012.04.020

Cited by 50 publications

(100 citation statements)

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“…The study of the fundamental principles involved in self-assembling and self-organization of oxides, i.e. nucleation and coarsening, is essential for the fabrication of nanostructured devices with compelling functional properties that usually depend on the particular crystalline orientation [34][35][36][37][38] . These principles are of thermodynamic and kinetic origin, and act as driving forces enabling the growth of nanostructures.…”

Section: Introductionmentioning

confidence: 99%

Unveiling the Nucleation and Coarsening Mechanisms of Solution-Derived Self-Assembled Epitaxial Ce_0.9Gd_0.1O_2–y Nanostructures

Queraltó

Mata

Arbiol

et al. 2017

Crystal Growth & Design

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Self-assembling approaches based on chemical solution deposition (CSD) are ideal methods for the costeffective production of epitaxial nanostructures with high-throughput. Therefore, an in-depth investigation of the nucleation and coarsening processes involved in the self-assembling of nanostructures is mandatory to achieve a good control over nanostructure shape, dimensions and orientation. Heteroepitaxial Ce0.9Gd0.1O2-y (CGO) is an ideal model system to unveil the underlying nanostructure development mechanisms in addition to their promising properties for catalysis, gas sensors and ionic

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Section: Introductionmentioning

confidence: 99%

Unveiling the Nucleation and Coarsening Mechanisms of Solution-Derived Self-Assembled Epitaxial Ce_0.9Gd_0.1O_2–y Nanostructures

Queraltó

Mata

Arbiol

et al. 2017

Crystal Growth & Design

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“…of this technology is the possibility of including rare-earth elements and zirconium oxide in the precursors in order to create artificial pinning centers in the films. 35,36 4.2. Bulk samples…”

Section: Chemical Film Manufacturing Methodsmentioning

confidence: 99%

High-temperature superconductors of the family (RE)Ba2Cu3O7-δ and their application (Review Article)

Бондаренко

Koverya

Krevsun

et al. 2017

Low Temperature Physics

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This review article is a commemoration of the 30th anniversary of the discovery of YBa 2 Cu 3 O 7-d high-temperature superconductors (HTSCs). As a result of this discovery a family of (RE)Ba 2 Cu 3 O 7-d (RE stands for "rare earth") HTSCs has found great practical use. The review article consists of a brief history of how YBa 2 Cu 3 O 7-d was conceived and five sections describing the family of compounds: crystallography, phase diagrams, manufacturing techniques, main superconducting properties, and fields of application.

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“…The field of HTS superconductors has been the driving force in this case [18]. The most cumbersome issue to achieve high-performance coated conductors (CC) has been to find a suitable methodology to grow epitaxial YBCO thin films and nanocomposites based on CSD on flexible metal substrates, and here, the greatest progress has been made based on the use of metal-trifluoroacetates (M-TFA) as metal-organic precursors [19][20][21][22]. The main advantage of these precursors is that they decompose in intermediate nanometric Cu and Y oxides and BaF 2 phases, thus avoiding the formation of BaCO 3 whose decomposition is cumbersome [23].…”

Section: Chemical Solution Deposition (Csd)mentioning

confidence: 99%

6. Vortex dynamics in nanofabricated chemical solution deposition high-temperature superconducting films

Palau¹,

Rouco²,

Luccas³

et al. 2017

Superconductors at the Nanoscale

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Artificial manipulation and control of vortex dynamics in YBa 2 Cu 3 O 7 (YBCO) films have always been a complex issue, especially since high thermal excitations but also strong vortex pinning capabilities coexist in this material. Thus, artificial nanofabrication strategies able to generate competing effects with intrinsic microstructural defects need to be achieved. Lithography tools are widely used to create model systems with controlled pinning potentials in superconductors. However, these techniques easily disturb the optimal oxygen film doping in YBCO films and consequently the overall performances degrades. We have optimized the use of two different high-resolution nanolithography approaches, Focused Ion Beam Milling and Electron Beam Lithography, to artificially and locally modify the pinning landscape of YBCO films grown by chemical solution deposition (CSD). Three different nanofabricated systems will be discussed, which resulted in ideal structures to manipulate vortex dynamics in CSD-YBCO thin films with strong intrinsic pinning centers. In particular, we observed artificial granularity effects, nanowall pinning, and positive and negative rectification effects. We will report on our understanding of all these effects and potential expectations. IntroductionYBa 2 Cu 3 O 7−d (YBCO) is⁴ the technologically most relevant high-temperature superconductor, highly explored for practical applications [1][2][3][4][5][6]. The achievement of artificial pinning centers (APC) in YBCO films is of major concern when pinning forces need to be optimized, in coated conductors (long-length epitaxial YBCO films on buffered flexible metallic substrates), or when they need to be exploited for electronic applications, requiring flux quanta manipulation. However, flux pinning in cuprate superconductors requires control of the defect structure on a nanometric scale and this is a cumbersome problem. The primary concern is to develop efficient techniques for

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Nucleation and mesostrain influence on percolating critical currents of solution derived YBa2Cu3O7 superconducting thin films

Cited by 50 publications

References 77 publications

Unveiling the Nucleation and Coarsening Mechanisms of Solution-Derived Self-Assembled Epitaxial Ce_0.9Gd_0.1O_2–y Nanostructures

Unveiling the Nucleation and Coarsening Mechanisms of Solution-Derived Self-Assembled Epitaxial Ce_0.9Gd_0.1O_2–y Nanostructures

High-temperature superconductors of the family (RE)Ba2Cu3O7-δ and their application (Review Article)

6. Vortex dynamics in nanofabricated chemical solution deposition high-temperature superconducting films

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Nucleation and mesostrain influence on percolating critical currents of solution derived YBa2Cu3O7 superconducting thin films

Cited by 50 publications

References 77 publications

Unveiling the Nucleation and Coarsening Mechanisms of Solution-Derived Self-Assembled Epitaxial Ce0.9Gd0.1O2–y Nanostructures

Unveiling the Nucleation and Coarsening Mechanisms of Solution-Derived Self-Assembled Epitaxial Ce0.9Gd0.1O2–y Nanostructures

High-temperature superconductors of the family (RE)Ba2Cu3O7-δ and their application (Review Article)

6. Vortex dynamics in nanofabricated chemical solution deposition high-temperature superconducting films

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Unveiling the Nucleation and Coarsening Mechanisms of Solution-Derived Self-Assembled Epitaxial Ce_0.9Gd_0.1O_2–y Nanostructures

Unveiling the Nucleation and Coarsening Mechanisms of Solution-Derived Self-Assembled Epitaxial Ce_0.9Gd_0.1O_2–y Nanostructures