Growth Condition Dependence of Microcracks in YBCO Thin Films Pulsed Laser Deposited on &lt;inline-formula&gt; &lt;tex-math notation="TeX"&gt;$\hbox{NdGaO}_{3}$&lt;/tex-math&gt;&lt;/inline-formula&gt; (001) Substrates

Palonen, Heikki; Huhtinen, H.; Paturi, P.

doi:10.1109/tasc.2014.2365407

Cited by 3 publications

(3 citation statements)

References 16 publications

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“…The introduction of nanocrystals in YBCO results in an increase in Ɛ00ℓ when they are homogeneously distributed throughout the layer (Table 1), and this in turn can be related to the enhanced pinning properties and Jc isotropy as previously reported by other groups. 12,15,17,[41][42][43][68][69] The increase of Ɛ00ℓ in the BZO, SZO and BHO nanocomposites results in a nearly linear increase of H * (Figure 7A) and a polynomial decrease of α (Figure 7B) at 77 K. Conversely, the BTO-added film has Ɛ00ℓ similar to the pristine film due to the agglomeration of BTO nanocrystals and therefore shows no improvement of pinning properties. Figure 7C shows a linear correlation between Ɛ00ℓ and the normalized Jc at 77K and 1 T as a consequence of the enhanced pinning properties.…”

Section: Relation Between Microstrain and Pinning Propertiesmentioning

confidence: 99%

High Critical Current Density and Enhanced Pinning in Superconducting Films of YBa₂Cu₃O_7−δ Nanocomposites with Embedded BaZrO₃, BaHfO₃, BaTiO₃, and SrZrO₃ Nanocrystals

Sierra

López-Domínguez

Rijckaert

et al. 2020

ACS Appl. Nano Mater.

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Chemical solution deposition (CSD) of YBa2Cu3O7−δ (YBCO) nanocomposites from colloidal precursor solutions containing double metal oxide preformed nanocrystals is a promising, costeffective and reproducible approach to produce superconducting films with high critical current density (Jc) and enhanced pinning. Here, the influence of the preformed nanocrystal composition on the microstructure and superconducting properties of the YBCO nanocomposite films is studied, with a focus on establishing a simple and scalable process to grow nanocomposites that can be transferred to grow nano-added coated conductors. Colloidal stable BaZrO3, BaHfO3, BaTiO3 and SrZrO3 nanocrystals (3-6 nm in diameter) were synthesized and added to an environment-friendly low-fluorine YBCO precursor solution. High-quality superconducting layers were grown on LaAlO3 single-crystal substrates from these four nanocomposite precursor solutions in a single deposition process, without the need of a seed layer, yielding Jc of 4-5 MA/cm² at 77 K in self-field. The different YBCO microstructures produced by the four types of nanocrystals and the resulting microstrain of the films are compared and related with the magnetic-field and angular dependence of Jc. We demonstrate the BaHfO3-containing nanocomposite as the best-performing with a homogeneous distribution of nanoparticles with 7 nm in average diameter and a high density of stacking faults, which leads to some of the best superconducting properties ever achieved via low-fluorine CSD. The Jc exhibits a much smoother decay in applied magnetic fields and a much more isotropic behaviour for non-parallel magnetic fields, and the pinning force is increased by a factor of 3.5 at 77 K and 1 T with respect to the pristine film.

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Section: Relation Between Microstrain and Pinning Propertiesmentioning

confidence: 99%

High Critical Current Density and Enhanced Pinning in Superconducting Films of YBa₂Cu₃O_7−δ Nanocomposites with Embedded BaZrO₃, BaHfO₃, BaTiO₃, and SrZrO₃ Nanocrystals

Sierra

López-Domínguez

Rijckaert

et al. 2020

ACS Appl. Nano Mater.

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“…Superconductivity has found to be thickness dependent; therefore, precise control of thin films is crucial. Here, PLD provides an advantage of controlled growth of thin films through variation in experimental parameters [69,70], which can improve the quality of thin films in individual applications. There are many recent studies found in literature that demonstrate the exploration of experimental parameters of PLD for diverse types of highquality superconducting thin films.…”

Section: Pulsed Laser Depositionmentioning

confidence: 99%

“…Superconducting transition was observed around 12 K at a film thickness of 9 nm. One of the benefits of PLD method is that quality and thickness of thin films can be controlled by varying deposition time, growth rate (determined by pulse repetition rate) and substrate temperature during the film growth [69,70].…”

Section: Pulsed Laser Depositionmentioning

confidence: 99%

Laser-Induced Plasma and its Applications

Chaudhary¹,

Haider²,

Ali³

2016

Plasma Science and Technology - Progress in Physical States and Chemical Reactions

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The laser irradiation have shown a range of applications from fabricating, melting, and evaporating nanoparticles to changing their shape, structure, size, and size distribution. Laser induced plasma has used for different diagnostic and technological applications as detection, thin film deposition, and elemental identification. The possible interferences of atomic or molecular species are used to specify organic, inorganic or biological materials which allows critical applications in defense (landmines, explosive, forensic (trace of explosive or organic materials), public health (toxic substances pharmaceutical products), or environment (organic wastes). Laser induced plasma for organic material potentially provide fast sensor systems for explosive trace and pathogen biological agent detection and analysis. The laser ablation process starts with electronic energy absorption (~fs) and ends at particle recondensation (~ms). Then, the ablation process can be governed by thermal, non-thermal processes or a combination of both. There are several types of models, i.e., thermal, mechanical, photophysical, photochemical and defect models, which describe the ablation process by one dominant mechanism only. Plasma ignition process includes bond breaking and plasma shielding during the laser pulse. Bond breaking mechanisms influence the quantity and form of energy (kinetic, ionization and excitation) that atoms and ions can acquire. Plasma expansion depends on the initial mass and energy in the plume. The process is governed by initial plasma properties (electron density, temperature, velocity) after the laser pulse and the expansion medium. During first microsecond after the laser pulse, plume expansion is adiabatic afterwards line radiation becomes the dominant mechanism of energy loss.

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Progresses of magnetoelectric composite films based on PbMg1/3Nb2/3O3-PbTiO3 single-crystal substrates

Meng¹,

Yan²,

Xu³

et al. 2018

Acta Phys. Sin.

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Owing to the rapid development of microelectronic technology,higher requirements are raised for miniaturization, intellectualization,sensitivity,reliability,low-power consumption and versatile functions of electromagnetic functional devices,but conventional block magnetic or electrical functional materials cannot meet those requirements mentioned above any longer.Layered magnetoelectric composites,by contrast,have ferroelectric,ferromagnetic and magnetoelectric properties,so they are possible to satisfy these demands above and be applied to the next-generation magnetoelectric functional devices.Layered magnetoelectric composites not only have rich physical phenomena and effects,but also possess broad application prospects in weak magnetic field detectors,multi-state memories,electric-write/magnetic-read memories,electrically tunable filters,phase shifters,antennas,etc,which have attracted extensive attention of material scientists and physicists.Among layered magnetoelectric composites,the functional thin film/ferroelectric single crystal heterostructures have aroused increasingly interest due to their simple preparation method,flexible structural design,effective electric field control and low power consumption.Currently,because of the excellent ferroelectric and piezoelectric properties of the (1 -x) PbMg1/3Nb2/3O3-xPbTiO3(PMN-PT) single crystal,the functional thin film/PMN-PT single crystal heterostructure has become one of the hot research topics in the multiferroic composite thin film material field.On this research topic,Chinese scientists have made their own significant contributions to the research of functional thin film/PMN-PT single crystal heterojunction.So far,researchers have built multiple types of thin film/PMN-PT heterostructures,such as manganese oxide/PMN-PT,ferrite/PMN-PT,ferromagnetic metal/PMN-PT,dilute magnetic semiconductor/PMN-PT,luminescent material/PMN-PT,two-dimensional material/PMN-PT,multi-layer film/PMN-PT,superconductive material/PMN-PT,etc.,and they have made great achievements in both theoretical and experimental studies.In this review,we summarize the research progress of magnetoelectric composite thin films based on PMN-PT single crystal substrates in the last decade.We first briefly describe the current status of articles related to functional film/PMN-PT heterostructures.Then we introduce the phase diagram and electric-field-induced strain properties of the PMN-PT single crystal around the morphotropic phase boundary.We also classify the heterostructures according to different categories of functional thin film materials and discuss the representative research findings of each category in the past few years.Our discussion focuses on the magnetoelectric properties of materials and the intrinsic physical mechanism.Finally,we also discuss the scientific problems to be solved and predict the possible application directions in the future.

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Growth Condition Dependence of Microcracks in YBCO Thin Films Pulsed Laser Deposited on <inline-formula> <tex-math notation="TeX">$\hbox{NdGaO}_{3}$</tex-math></inline-formula> (001) Substrates

Cited by 3 publications

References 16 publications

High Critical Current Density and Enhanced Pinning in Superconducting Films of YBa₂Cu₃O_7−δ Nanocomposites with Embedded BaZrO₃, BaHfO₃, BaTiO₃, and SrZrO₃ Nanocrystals

High Critical Current Density and Enhanced Pinning in Superconducting Films of YBa₂Cu₃O_7−δ Nanocomposites with Embedded BaZrO₃, BaHfO₃, BaTiO₃, and SrZrO₃ Nanocrystals

Laser-Induced Plasma and its Applications

Progresses of magnetoelectric composite films based on PbMg1/3Nb2/3O3-PbTiO3 single-crystal substrates

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Growth Condition Dependence of Microcracks in YBCO Thin Films Pulsed Laser Deposited on <inline-formula> <tex-math notation="TeX">$\hbox{NdGaO}_{3}$</tex-math></inline-formula> (001) Substrates

Cited by 3 publications

References 16 publications

High Critical Current Density and Enhanced Pinning in Superconducting Films of YBa2Cu3O7−δ Nanocomposites with Embedded BaZrO3, BaHfO3, BaTiO3, and SrZrO3 Nanocrystals

High Critical Current Density and Enhanced Pinning in Superconducting Films of YBa2Cu3O7−δ Nanocomposites with Embedded BaZrO3, BaHfO3, BaTiO3, and SrZrO3 Nanocrystals

Laser-Induced Plasma and its Applications

Progresses of magnetoelectric composite films based on PbMg1/3Nb2/3O3-PbTiO3 single-crystal substrates

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Product

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High Critical Current Density and Enhanced Pinning in Superconducting Films of YBa₂Cu₃O_7−δ Nanocomposites with Embedded BaZrO₃, BaHfO₃, BaTiO₃, and SrZrO₃ Nanocrystals

High Critical Current Density and Enhanced Pinning in Superconducting Films of YBa₂Cu₃O_7−δ Nanocomposites with Embedded BaZrO₃, BaHfO₃, BaTiO₃, and SrZrO₃ Nanocrystals