Low temperature synthesis and structural characterization of over-stoichiometric LaMnO3+δ perovskites
✍ Scribed by A Barnabé; M Gaudon; C Bernard; C Laberty; B Durand
- Book ID
- 113785162
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 248 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0025-5408
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## LaMn ؊x Li x O 3 perovskites have been synthesized by a 6ux method using LiCl. Substitution of Li> creates mixed-valent manganese according to the formula LaMn 3؉ 1؊3x Mn 4؉ 2x Li ؉ x O 3 , for 0.104x40.20. At low values of x, additional vacancies are found on the perovskite A and B sites. All
In this work we present a systematic study of the crystallographic structure and the magnetic ordering of LaMnO 3؎ perovskites. Changing the oxygen composition within the range 2.995 < 3 ؎ < 3.140, we found a 3 ؉ 1 value (3.04 < 3 ؉ 1 < 3.05) which de5nes a boundary in the magnetic phase diagram T v
## Abstract The title compound is prepared from stoichiometric mixtures of SrCO~3~, CaCO~3~, and Sb~2~O~3~ (1200 °C, 120 h) and characterized by XRD, TEM, and SAED.