Gigantic effect of iron doping upon magnetism in the «114» magnetoelectric CaBaCo4O7

Abstract : The investigation of the CaBaCo4-xFex07 oxide shows that a huge decrease of ferrimagnetism is produced for very low Fe contents (x andlt; 0.05) at the benefit of magnetic phase separation and magnetic frustration. This gigantic effect of iron doping at the Co3+ sites in CaBaCo4O7 is compared to that produced by diamagnetic Ga3+ and Al3+ dopants, showing that the antiferromagnetic interactions between the dopant Fe3+ and the Co2+ ferromagnetic chains has a crucial role in the destabilization of the ferrimagnetic structure, whereas the triangular geometry of the cobalt sublattice imposes the appearance of magnetic frustration. © 2015 Elsevier B.V. All rights reserved.
Type de document :
Article dans une revue
Liste complète des métadonnées

https://hal-normandie-univ.archives-ouvertes.fr/hal-02184783
Contributeur : Université Normandie <>
Soumis le : mardi 16 juillet 2019 - 11:33:49
Dernière modification le : mercredi 17 juillet 2019 - 01:37:30

Identifiants

Collections

Citation

M.M. Seikh, A.K. Kundu, V. Caignaert, B. Raveau. Gigantic effect of iron doping upon magnetism in the «114» magnetoelectric CaBaCo4O7. Journal of Alloys and Compounds, 2016, 656, pp.166-171. ⟨10.1016/j.jallcom.2015.08.257⟩. ⟨hal-02184783⟩

Partager

Métriques

Consultations de la notice

10