Propiedades magnéticas y espectroscopia mössbauer en compuestos perovskita doble Sr2(Fe1-xScx)ReO6 (x = 0.05, 0.1).

  1. Gómez, I. 1
  2. Hernández, T. 13
  3. Plazaola Muguruza, Fernando 3
  4. Barandiarán García, José Manuel 3
  5. Greneche, J. M. 2
  1. 1 Universidad Autónoma de Nuevo León
    info

    Universidad Autónoma de Nuevo León

    San Nicolás de los Garza, México

    ROR https://ror.org/01fh86n78

  2. 2 UMR
  3. 3 Universidad Politécnica de Valencia
    info

    Universidad Politécnica de Valencia

    Valencia, España

    ROR https://ror.org/01460j859

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Journal:
Boletín de la Sociedad Española de Cerámica y Vidrio

ISSN: 0366-3175

Year of publication: 2003

Volume: 42

Issue: 5

Pages: 317-321

Type: Article

DOI: 10.3989/CYV.2003.V42.I5.636 DIALNET GOOGLE SCHOLAR lock_openOpen access editor

More publications in: Boletín de la Sociedad Española de Cerámica y Vidrio

Abstract

We have synthesised by the modified Pechini method the following polycrystalline double perovskite samples: Sr2 Fe1- x Scx ReO6 (x = 0.05, 0.1). They have been characterised by X-ray, magnetic measurements and Mössbauer spectrometry. X-ray patterns showed that the double perovskites are well crystallized. The difference in size between Fe3+ and Sc3+ atomic radii does not cause large structural changes in compared to the parent Sr2 FeReO6 compound. The Curie temperatures are found at 426 and 435 (± 5) K for Sr2 Fe0.95Sc0.05ReO6 and Sr2 Fe0.9Sc0.1ReO6 respectively. The Mössbauer spectra measured at 77 K showed a complex hyperfine structure which result from different magnetic contributions at Fe sites, the average hyperfine field was estimated 50 T and the isomer shift at 0.5 mm/s consequently the iron ions stay in a trivalent state.

Data source: Dialnet