Concentration profiles across twin boundaries in YBa2Cu3O6+δ

Qiu-Hong Hu, Krystyna Stiller, Eva Olsson, Hans-Olof Andrén, Pedro Berastegui, and Lars-Gunnar Johansson
Phys. Rev. B 56, 11997 – Published 1 November 1997
PDFExport Citation

Abstract

Twin boundaries in polycrystalline YBa2Cu3O6+δ have been studied by atom-probe field-ion microscopy. Oxygen depletion at a twin boundary in a δ=0.6 material was observed. The width of the depleted region was 6–7 nm. It agrees well with the width of oxygen depletion calculated from the oxygen-depleted twin boundary model by Jou and Washburn. However, a twin boundary in a δ=0.9 material did not show any oxygen depletion. This study provides direct evidence of oxygen depletion at twin boundaries in polycrystalline YBa2Cu3O6+δ ceramics.

  • Received 18 July 1997

DOI:https://doi.org/10.1103/PhysRevB.56.11997

©1997 American Physical Society

Authors & Affiliations

Qiu-Hong Hu, Krystyna Stiller, Eva Olsson, and Hans-Olof Andrén

  • Department of Physics, Chalmers University of Technology and University of Göteborg, S-412 96 Göteborg, Sweden

Pedro Berastegui and Lars-Gunnar Johansson

  • Department of Inorganic Chemistry, Chalmers University of Technology and University of Göteborg, S-412 96 Göteborg, Sweden

References (Subscription Required)

Click to Expand
Issue

Vol. 56, Iss. 18 — 1 November 1997

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×