Synthesis and thermal stability of the solid solution AFeO2 (A = Ba, Sr, Ca).
Inorg Chem
; 49(13): 5957-62, 2010 Jul 05.
Article
em En
| MEDLINE
| ID: mdl-20509630
ABSTRACT
We have studied the A-site substitution effect on the structural, thermal, and magnetic properties of the infinite layer iron oxide AFeO(2) (A = alkali-earth elements) with an FeO(4) square-planar coordination. Together with the previous study showing a total substitution by Ca, Ba substitution is found to be tolerable up to 30%, presenting almost the same substitutional range as that found in ACuO(2) under high pressure. Notably, Ba substitution shows little influence on the magnetic properties, in contrast to expectations from first principles calculations. The temperature at which oxidation to an AFeO(2.5) phase occurs and its transformation rate show a wide variation tunable solely by the out-of-plane distance.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Óxidos
/
Estrôncio
/
Bário
/
Compostos Ferrosos
/
Cálcio
Tipo de estudo:
Prognostic_studies
Idioma:
En
Revista:
Inorg Chem
Ano de publicação:
2010
Tipo de documento:
Article
País de afiliação:
Japão