Mössbauer and susceptibility studies of FeMoVO<SUB>7</SUB>

The oxidic phase FeMoVO7 of the Fe2O3-V2O5-MoO3 system has been synthesized. Susceptibility measurements from 4.2 K to room temperature display an antiferromagnetic behaviour with an effective magnetic moment of 5.80ώb. This value, and the measured Mossbauer isomer shift of 0.40±0.02 mm/s, are chara...

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Autores principales: Goya, Gerardo Fabián, Mercader, Roberto Carlos, Vassallo, Marta Beatriz, Botto, Irma Lía, Sáez Puche, R.
Formato: Articulo
Lenguaje:Inglés
Publicado: 1994
Materias:
Química
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/134552
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SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-134552
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
spellingShingle Química
Goya, Gerardo Fabián
Mercader, Roberto Carlos
Vassallo, Marta Beatriz
Botto, Irma Lía
Sáez Puche, R.
Mössbauer and susceptibility studies of FeMoVO<SUB>7</SUB>
topic_facet Química
description The oxidic phase FeMoVO7 of the Fe2O3-V2O5-MoO3 system has been synthesized. Susceptibility measurements from 4.2 K to room temperature display an antiferromagnetic behaviour with an effective magnetic moment of 5.80ώb. This value, and the measured Mossbauer isomer shift of 0.40±0.02 mm/s, are characteristic of high-spin Fe(III). The lowTn value of 15 K suggests a weak interaction among the Fe-O polyhedra. The relative small QS=0.28±0.02 mm/s found in this compound shows that the Fe-O polyhedra symmetry is close to octahedral and almost undistorted.
format Articulo
Articulo
author Goya, Gerardo Fabián
Mercader, Roberto Carlos
Vassallo, Marta Beatriz
Botto, Irma Lía
Sáez Puche, R.
author_facet Goya, Gerardo Fabián
Mercader, Roberto Carlos
Vassallo, Marta Beatriz
Botto, Irma Lía
Sáez Puche, R.
author_sort Goya, Gerardo Fabián
title Mössbauer and susceptibility studies of FeMoVO<SUB>7</SUB>
title_short Mössbauer and susceptibility studies of FeMoVO<SUB>7</SUB>
title_full Mössbauer and susceptibility studies of FeMoVO<SUB>7</SUB>
title_fullStr Mössbauer and susceptibility studies of FeMoVO<SUB>7</SUB>
title_full_unstemmed Mössbauer and susceptibility studies of FeMoVO<SUB>7</SUB>
title_sort mössbauer and susceptibility studies of femovo<sub>7</sub>
publishDate 1994
url http://sedici.unlp.edu.ar/handle/10915/134552
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