Thermodynamic analysis of defect formation in BiFeO 3

Abstract In this paper the thermodynamic analysis of equilibrium concentration of defects for the system BiFeO 3 (solid)‐O 2 (gas) is carried out. The analysis is performed by the Kroger method of quasi‐chemical equations. The concentration of defects and free carriers vs. oxygen partial pressure in...

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Bibliographic Details
Published inPhysica status solidi. C Vol. 12; no. 1-2; pp. 117 - 119
Main Authors Tchelidze, T., Gagnidze, T., Shengelaya, A.
Format Journal Article
LanguageEnglish
Published 01.01.2015
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Summary:Abstract In this paper the thermodynamic analysis of equilibrium concentration of defects for the system BiFeO 3 (solid)‐O 2 (gas) is carried out. The analysis is performed by the Kroger method of quasi‐chemical equations. The concentration of defects and free carriers vs. oxygen partial pressure in surrounding atmosphere at definite temperature are obtained. The calculations were carried out for 3 nm BiFeO 3 nanowires too. When the defects ionization energies and material band gap are increased in nanowires, the picture of defects thermodynamics is changed. In 3 nm nanowire the area of self‐compensation is significantly broadened. (© 2015 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
ISSN:1862-6351
1610-1642
DOI:10.1002/pssc.201400153