Bi-2212 and Y123 highly curved single-crystal-like objects: whiskers, bows and ring-like structures

@article{Badica2012Bi2212AY,
  title={Bi-2212 and Y123 highly curved single-crystal-like objects: whiskers, bows and ring-like structures},
  author={Petre Badica and Angelo Agostino and Mohammad Hamidur Rahman Khan and Stefano Cagliero and Carmen Plăpcianu and Linda Pastero and Marco Truccato and Yuichiro Hayasaka and Gerhard Jakob},
  journal={Superconductor Science and Technology},
  year={2012},
  volume={25}
}
High-temperature superconducting objects of Bi2Sr2CaCu2O8 and Y Ba2Cu3O7 highly curved in the ab-plane, such as curved/kinked whiskers, bows and ring-like structures, were obtained within a solid–liquid–solid (SLS) grass-like growth mechanism. As-grown objects are crystals with three-dimensional epitaxy similar to conventional single crystals: they can be viewed as crystal parts ‘cut’ from a conventional rectangular crystal. Between our curved objects and conventional crystals, whiskers or thin… 

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References

SHOWING 1-10 OF 34 REFERENCES

Structural and superconducting properties of single-crystal Bi2Sr2Can − 1CunO2n + 4 + δ (n = 1–3) whiskers grown in gas-filled cavities

Using growth inside gas-filled cavities in KCl-fluxed melts, we have obtained free-standing phasepure Bi2Sr2Can − 1CunO2n + 4 + δ (n = 1–3) whiskers possessing superconducting properties in the

Growth of highly curved Al1–xInxN nanocrystals

A materials structure is reported that is characterized by high lattice curvature assigned to a compositional gradient. The phenomenon occurs for physical vapour deposition of Al1–xInxN epitaxial

Growth, contacting and ageing of superconducting Bi-2212 whiskers

We report the growth of highly oriented microscopic whisker-like crystals in the Bi–Sr–Ca–Cu–O system by means of glassy precursors. The dependence of the growth on the stoichiometric composition and

X-Ray Diffraction Study on YBa2Cu3O7-δ Epitaxial Thin Film Grown by an Activated Reactive Evaporation Method

The as-grown epitaxial thin film of YBa2Cu3O7-δ with Tc∼90 K on a (001) SrTiO3 substrate is investigated by means of X-ray diffraction. It is clearly shown that the c-axis is perpendicular to the

Superconducting properties of single-crystal whiskers of (Y0.86Ca0.14)Ba2Cu3Ox grown from precursors containing calcium and tellurium

Single-crystal whiskers of YBa2Cu3Ox (Y-123) phase with a length of about 2.5 mm were grown from sintered precursor powders with a nominal composition of Y1Ba2Cu3Te0.5Ca1.0Ox. Electron probe

Preparation of Fibrous Bi(Pb)-Sr-Ca-Cu-O Crystals and Their Superconducting Properties in a Bending State

The superconducting fibrous crystals of Bi(Pb)-Sr-Ca-Cu-O (2212 phase) have been prepared by heating a glassy melt-quenched plate in an oxygen atmosphere. The crystals show Tc(onset) at 75 K and

Single crystalline kinked semiconductor nanowire superstructures

A ‘nanotectonic’ approach is demonstrated that provides iterative control over the nucleation and growth of nanowires and is used to grow kinked or zigzag nanoweires in which the straight sections are separated by triangular joints.

Review on Bi–Sr–Ca–Cu–O whiskers

We review the current status of the growth, characterization and applications of Bi–Sr–Ca–Cu–O (BSCCO) whiskers from the materials science point of view. Our analysis leads to the conclusion that