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Point defects in (Mg,Fe)SiO 3 perovskite
Author(s) -
Hirsch L. M.,
Shankland T. J.
Publication year - 1991
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/91gl01582
Subject(s) - perovskite (structure) , crystallographic defect , materials science , oxygen pressure , point (geometry) , oxygen , mineralogy , thermodynamics , chemistry , crystallography , physics , mathematics , geometry , organic chemistry
Equilibrium concentrations of point defects in Fe‐bearing MgSiO 3 perovskite are calculated using a quantitative defect chemistry approach. Dependences of defect concentrations on temperature, oxygen activity, and pressure are illustrated. These calculations demonstrate how differences in the control of experimental conditions can lead to significant differences in point defect‐controlled properties.