Strong-Gravity Effect on Twinned Y1Ba2Cu3O7-x Single Crystal

Rabaya Bagum; Satoru Okayasu; Yusuke Iguchi; Masao Ono; Tsutomu Mashimo

doi:10.4028/www.scientific.net/DDF.289-292.517

Paper Titles

Influence of the Processing Parameters on the Nature of Oxides Formed on Sintered Stainless Steels during High-Temperature Exposures
p.485

Establishment of Thermally Grown Oxides upon the Early Oxidation Stages of Ni20Cr and Ni30Cr
p.493

An Insight on the Influence of Ion Implantation on the Pitting Corrosion Resistance of AISI 430 Stainless Steel
p.501

Oxygen Uptake and Diffusion in Mayenite
p.511

Strong-Gravity Effect on Twinned Y₁Ba₂Cu₃O_7-x Single Crystal
p.517

Study of Oxygen Diffusion in Polycrystalline ZnO by SIMS
p.523

Oxygen and Silicon Diffusion in Silica under Varying Ambient Conditions
p.531

The Oxide Scale Growth Mechanism on Fe20Cr5Al+RE Alloy in SO₂+O₂
p.541

Determination of Diffusion Coefficients of Oxygen Vacancies in La_0.58Sr_0.4Co_0.2Fe_0.8O_3-δ Perovskite Type Oxides
p.551

HomeDefect and Diffusion ForumDefect and Diffusion Forum Vols. 289-292Strong-Gravity Effect on Twinned Y1Ba2Cu3O7-x...

Strong-Gravity Effect on Twinned Y₁Ba₂Cu₃O_7-x Single Crystal

Abstract:

Ultracentrifuge experiments were performed on the twinned Y1Ba2Cu3O7-x (Y123) single crystal at much lower temperatures than the melting point. Two layers structure with slightly different compositions was observed in the sample ultracentrifuged at 250°C(380,000 G), which might be due to the sedimentation of atoms. In the strong gravity layer, it was found that the Y123 phase disappeared, and unknown XRD peaks appeared. Decomposition occurred in the sample ultracentrifuged at 400°C.