Magnetic Studies on New Mixed-Valence Phosphates Zn2+Fe23+(P2O7)2 and Zn0.52+Cu0.52+Fe23+(P2O7)2

Lamsaf, H.; Oulmekki, A.; Elghadraoui, E.; Fausto, RUİ; Wagner, F.; Costa, B.

doi:10.1007/s10948-018-4848-8

Magnetic Studies on New Mixed-Valence Phosphates Zn2+Fe23+(P2O7)2 and Zn0.52+Cu0.52+Fe23+(P2O7)2

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Lamsaf H., Oulmekki A., Elghadraoui E. H., Fausto R., Wagner F. E., Costa B. F. O.

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, vol.32, no.5, pp.1377-1382, 2019 (SCI-Expanded)

Publication Type: Article / Article
Volume: 32 Issue: 5
Publication Date: 2019
Doi Number: 10.1007/s10948-018-4848-8
Journal Name: JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Page Numbers: pp.1377-1382
Istanbul Kültür University Affiliated: Yes

Abstract

Structural studies of Zn(2+)Fe23+(P2O7)(2) and Cu0.5Zn0.5Fe2(P2O7)(2) were made using powder X-ray diffraction and refined by Rietveld method. Both phosphates crystallize in an orthorhombic structure with Pnma space group. Magnetometry measurements showed that below T-N =5.6 (1), Zn(2+)Fe23+(P2O7)(2) becomes antiferromagnetic and the T-N =14 K is attributed to Cu0.5Zn0.5Fe2(P2O7)(2). Mossbauer studies at room temperature and low temperature were performed in both samples.