Specific features of the structure and weight loss of aliovalent-substituted oxides based on lanthanum gallate (La,Sr)(Ga,Fe,Mg)O{sub 3-y}
Journal Article
·
· Crystallography Reports
- Gothenburg University, Department of Chemistry (Sweden)
The structure of the (La{sub 0.9}Sr{sub 0.1})(Ga{sub 0.56}Fe{sub 0.24}Mg{sub 0.20})O{sub 2.85+y} oxide is investigated using neutron powder diffraction at temperatures of 10, 295, and 1000 K. The results of the structure refinement are in good agreement with the dilatometric and thermogravimetric data and confirm the inference that the valence state of iron cations is higher than 3+ and that the lattice undergoes an additional expansion due to the oxygen loss at temperatures above 870 K.
- OSTI ID:
- 21091500
- Journal Information:
- Crystallography Reports, Vol. 51, Issue 2; Other Information: DOI: 10.1134/S1063774506020064; Copyright (c) 2006 Nauka/Interperiodica; Article Copyright (c) 2006 Pleiades Publishing, Inc; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7745
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
GALLIUM COMPOUNDS
IRON COMPOUNDS
LANTHANUM COMPOUNDS
MAGNESIUM COMPOUNDS
NEUTRON DIFFRACTION
OXIDES
STRONTIUM COMPOUNDS
TEMPERATURE RANGE 0000-0013 K
TEMPERATURE RANGE 0273-0400 K
TEMPERATURE RANGE 0400-1000 K
THERMAL GRAVIMETRIC ANALYSIS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
GALLIUM COMPOUNDS
IRON COMPOUNDS
LANTHANUM COMPOUNDS
MAGNESIUM COMPOUNDS
NEUTRON DIFFRACTION
OXIDES
STRONTIUM COMPOUNDS
TEMPERATURE RANGE 0000-0013 K
TEMPERATURE RANGE 0273-0400 K
TEMPERATURE RANGE 0400-1000 K
THERMAL GRAVIMETRIC ANALYSIS