Defect identification in (La, Sr)CoO3-δ using positron annihilation spectroscopy

Publication Type:

Conference Paper

Authors:

T. Friessnegg; B. Nielsen; V.J. Ghosh; A.R. Moodenbaugh; S. Madhukar; S. Aggarwal; D.J. Keeble; E.H. Poindexter; P. Mascher; Ramamoorthy Ramesh

Source:

Materials Research Society Symposium - Proceedings, Volume 541, p.161-165 (1999)

Keywords:

Defect structure, Doping (additives), lanthanum compounds, oxygen, Oxygen vacancy related defects, Point defects, Positron annihilation spectroscopy, Positrons, spectroscopy, Strontium, thin films

Abstract:

Vacancy type defects in bulk La1-xSrxCoO3-δ samples were investigated by positron lifetime spectroscopy. The effects of Sr-doping as well as the effect of oxygen deficiency were determined. Comparing the resolved lifetimes with calculated values permits defect identification. © 1999 Materials Research Society.

Notes:

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