Transformations of faceted grain boundaries in high-Tc superconductors

S. V. Bobylev; I. A. Ovid’ko

doi:10.1103/PhysRevB.67.132506

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Transformations of faceted grain boundaries in high-Tc superconductors

S. V. Bobylev, I. A. Ovid’ko

DOI 10.1103/PhysRevB.67.132506 · Physical Review B

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Abstract

A theoretical model is suggested that describes the transformations of faceted low-angle grain boundaries in high-Tc superconductors. Conditions are theoretically revealed at which the formation of split dislocation configurations at facet junctions and central parts of facets of low-angle tilt boundaries is energetically favorable. The results of the suggested model account for experimental data reported in the literature on observation of faceted low-angle tilt boundaries consisting of split dislocation configurations in high-Tc superconductors.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown