skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Atomic scale characterization of oxygen vacancy segregation at SrTiO{sub 3} grain boundaries

Abstract

We have examined the atomic structure, composition, and bonding at a nominally undoped 58{sup o} [001] tilt grain boundary in SrTiO{sub 3} in order to develop an understanding of the control that the grain boundary plane exerts over the bulk properties. Room temperature and in situ heating experiments show that there is a segregation of oxygen vacancies to the grain boundary that is increased at elevated temperatures and is independent of the cation arrangement. These measurements provide direct support for recent experimental and theoretical predictions that nonstoichiometry, and in particular oxygen vacancies, are responsible for the widely observed grain boundary properties.

Authors:
;
Publication Date:
Sponsoring Org.:
(US)
OSTI Identifier:
40205325
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 77; Journal Issue: 23; Other Information: DOI: 10.1063/1.1330572; Othernumber: APPLAB000077000023003737000001; 055049APL; PBD: 4 Dec 2000; Journal ID: ISSN 0003-6951
Publisher:
The American Physical Society
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BONDING; CATIONS; GRAIN BOUNDARIES; HEATING; OXYGEN; PHYSICS; SEGREGATION; VACANCIES

Citation Formats

Klie, R F, and Browning, N D. Atomic scale characterization of oxygen vacancy segregation at SrTiO{sub 3} grain boundaries. United States: N. p., 2000. Web. doi:10.1063/1.1330572.
Klie, R F, & Browning, N D. Atomic scale characterization of oxygen vacancy segregation at SrTiO{sub 3} grain boundaries. United States. doi:10.1063/1.1330572.
Klie, R F, and Browning, N D. Mon . "Atomic scale characterization of oxygen vacancy segregation at SrTiO{sub 3} grain boundaries". United States. doi:10.1063/1.1330572.
@article{osti_40205325,
title = {Atomic scale characterization of oxygen vacancy segregation at SrTiO{sub 3} grain boundaries},
author = {Klie, R F and Browning, N D},
abstractNote = {We have examined the atomic structure, composition, and bonding at a nominally undoped 58{sup o} [001] tilt grain boundary in SrTiO{sub 3} in order to develop an understanding of the control that the grain boundary plane exerts over the bulk properties. Room temperature and in situ heating experiments show that there is a segregation of oxygen vacancies to the grain boundary that is increased at elevated temperatures and is independent of the cation arrangement. These measurements provide direct support for recent experimental and theoretical predictions that nonstoichiometry, and in particular oxygen vacancies, are responsible for the widely observed grain boundary properties.},
doi = {10.1063/1.1330572},
journal = {Applied Physics Letters},
issn = {0003-6951},
number = 23,
volume = 77,
place = {United States},
year = {2000},
month = {12}
}