In situ solid state oxidation reaction for La1-xSrxMnO3 (x=0, 0.1, 0.2 and 0.3) formation

Marques, RFC; Jafelicci, M.; Paiva-Santos, C. O.; Varanda, L. C.; Godoi, RHM

Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/36890

Title:

In situ solid state oxidation reaction for La1-xSrxMnO3 (x=0, 0.1, 0.2 and 0.3) formation

Author(s):

Institution:

Universidade Estadual Paulista (UNESP)

ISSN:

0304-8853

Abstract:

In situ solid state oxidation reaction for an alternative La1-xSrxMnO3 (x = 0, 0.1, 0.2 and 0.3) formation is reported. Samples have been obtained by using strontium peroxide, lanthanum and manganese (III) oxide reagents. Strontium peroxide has induced the oxidation of Mn+3 to Mn+4. Lanthanum strontium-doped manganite was obtained without secondary phase formation. La0.825Sr0.175MnO3 showed two structural transitions. The first from 88 to 373 K and the second at 1073 K. which are explained by Jahn-Teller effect at low temperature and cation displacement at high temperature. (C) 2001 Elsevier B.V. B.V. All rights reserved.

Issue Date:

1-May-2001

Citation:

Journal of Magnetism and Magnetic Materials. Amsterdam: Elsevier B.V., v. 226, p. 812-814, 2001.

Time Duration:

812-814

Publisher:

Elsevier B.V.

Keywords:

lanthanum manganite
perovskite structure
phase transitions-crystallographic

Source:

http://dx.doi.org/10.1016/S0304-8853(00)01403-7

URI:

Access Rights:

Acesso restrito

Type:

outro

Source:

http://repositorio.unesp.br/handle/11449/36890

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