In-plane flux pinning in melt-textured<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">YBa</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Cu</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">O</mml:mi></mml:mrow><mml:mrow><mml:mn>7</mml:mn></mml:

Martı́nez, B.; Puig, T.; Gou, A.; Gomis, V.; Piñol, S.; Fontcuberta, J.; Obradors, X.; Chouteau, G.

doi:10.1103/physrevb.58.15198

Cited by 20 publications

(2 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hence, a misleading anisotropy of the material might be inferred. 35 An analysis of the anisotropy of melttextured composites in the pinned liquid vortex state is performed in the next section. There, we have used angulardependent magnetoresistance measurements to separate the contributions of the different flux-pinning effects from that of the intrinsic anisotropy.…”

Section: Resultsmentioning

confidence: 99%

Vortex liquid entanglement in twinnedYBa2Cu3O7
Puig
¹
,
Galante
²
,
González
³

et al. 1999
Phys. Rev. B
Self Cite
34
1
15
1
View full text Add to dashboard Cite

The angular dependence of the in-plane resistivity (T,H,) of melt textured YBa 2 Cu 3 O 7 /Y 2 BaCuO 5 composites has been measured in a large range of magnetic fields and temperatures and from them, the intrinsic anisotropy of the superconducting state has been verified following the anisotropic Ginzburg-Landau approach. The influence of correlated defects like twin boundaries and quenched disorder generated by Y 2 BaCuO 5 precipitates on the pinning behavior of these composites in the liquid vortex state is analyzed, and the corresponding phase diagram is determined and compared to that of twinned single crystals. We show that the irreversibility line displays an upwards shift due to twin boundary pinning enabling to define a ''quenched'' Bose glass transition. A new region in the vortex liquid state is identified where twin boundary pinning defines a partially entangled liquid vortex state characterized by a short-range c-axis vortex coherence. The transition to the entangled liquid phase is experimentally determined. The relevance of this depinning line and its unique position with respect to twinned single crystals is discussed. ͓S0163-1829͑99͒01741-5͔

show abstract

Section: Resultsmentioning

confidence: 99%

Vortex liquid entanglement in twinnedYBa2Cu3O7
Puig
¹
,
Galante
²
,
González
³

et al. 1999
Phys. Rev. B
Self Cite
34
1
15
1
View full text Add to dashboard Cite

show abstract

“…They can be described following existing vortex pinning models for weak collective pinning predicting an exponential dependence with T and the Bose glass theory to describe strong correlated pinning centers where it is predicted that J c decays as an exponential function of T 2 [226,259]. This modeling approach was previously used successfully as well to the analysis of melt textured YBa 2 Cu 3 O 7 -Y 2 BaCuO 5 bulk ceramics with modified microstructural effects, including SFs, TBs and secondary phases [224,231,[260][261][262]. In REBCO thin films it has been shown that anisotropic defects act only as strong pinning centers, whereas isotropic defects can be point or nanosized defects, promoting either a weak or a strong pinning behavior.…”

Section: Vortex Pinning Landscape: Relationship With Nps and Induced ...mentioning

confidence: 99%

Progress in superconducting REBa₂Cu₃O₇ (RE = rare earth) coated conductors derived from fluorinated solutions

Obradors,

Puig,

Ricart

et al. 2024

Supercond. Sci. Technol.

View full text Add to dashboard Cite

In this work, we review recent progress achieved in the use of Chemical Solution Deposition (CSD) based on fluorinated metalorganic precursors to grow superconducting REBCO films and CCs. We examine, first of all, the advances in optimizing the steps related to the solutions preparation, deposition and pyrolysis based on novel low-fluorine metalorganic solutions. We show that a new type of multifunctional colloidal solutions including preformed nanoparticles, can be used to introduce artificial pinning centers (APCs). We analyze how to disentangle the complex physico-chemical transformations occurring during the pyrolysis with the purpose of maximizing the film thicknesses. Understanding the nucleation and growth mechanisms is shown to be critical to achieve a fine tuning of the final microstructure, either using the spontaneous segregation or the colloidal solution approaches, and make industrially scalable this process. Advanced nanostructural studies have deeply modified our understanding of the defect structure and its genealogy. It is remarkable the key role played by the high concentration of randomly distributed and oriented BaMO3 (M=Zr, Hf) nanoparticles which enhance the concentration of APCs, such as stacking faults and the associated partial dislocations.Correlating the defect structure with the critical current density Jc(H,T,) allows to reach a tight control of the vortex pinning properties and to devise a general scheme of the vortex pinning landscape in the whole H – T phase diagram. We also refer to the outstanding recent achievements in enhancing the vortex pinning strength by shifting the carrier concentration in REBCO films towards the overdoped state, where the pinning energy is maximum and so, record values of critical current densities are achieved. This confirms the performance competitiveness of nanocomposite CCs prepared through the CSD route. We conclude with a short summary of the progress in scaling the CC manufacturing using fluorinated solutions.

show abstract

Flux pinning characteristics of YBCO: NaNbO3 by introducing artificial pinning centers with different morphology

Dahiya

Kumar

et al. 2021

Ceramics International

View full text Add to dashboard Cite

In-plane flux pinning in melt-texturedYBa2Cu3O7

Cited by 20 publications

References 42 publications

Vortex liquid entanglement in twinnedYBa2Cu3O7
Puig
¹
,
Galante
²
,
González
³

et al. 1999
Phys. Rev. B
Self Cite
34
1
15
1
View full text Add to dashboard Cite

Vortex liquid entanglement in twinnedYBa2Cu3O7
Puig
¹
,
Galante
²
,
González
³

et al. 1999
Phys. Rev. B
Self Cite
34
1
15
1
View full text Add to dashboard Cite

Progress in superconducting REBa₂Cu₃O₇ (RE = rare earth) coated conductors derived from fluorinated solutions

Flux pinning characteristics of YBCO: NaNbO3 by introducing artificial pinning centers with different morphology

Contact Info

Product

Resources

About

In-plane flux pinning in melt-texturedYBa2Cu3O7

Cited by 20 publications

References 42 publications

Vortex liquid entanglement in twinnedYBa2Cu3O7Puig1, Galante2, González3 et al. 1999Phys. Rev. BSelf Cite341151View full textAdd to dashboardCite

Vortex liquid entanglement in twinnedYBa2Cu3O7Puig1, Galante2, González3 et al. 1999Phys. Rev. BSelf Cite341151View full textAdd to dashboardCite

Progress in superconducting REBa2Cu3O7 (RE = rare earth) coated conductors derived from fluorinated solutions

Flux pinning characteristics of YBCO: NaNbO3 by introducing artificial pinning centers with different morphology

Contact Info

Product

Resources

About

Vortex liquid entanglement in twinnedYBa2Cu3O7
Puig
¹
,
Galante
²
,
González
³

et al. 1999
Phys. Rev. B
Self Cite
34
1
15
1
View full text Add to dashboard Cite

Vortex liquid entanglement in twinnedYBa2Cu3O7
Puig
¹
,
Galante
²
,
González
³

et al. 1999
Phys. Rev. B
Self Cite
34
1
15
1
View full text Add to dashboard Cite

Progress in superconducting REBa₂Cu₃O₇ (RE = rare earth) coated conductors derived from fluorinated solutions