Gigantic effect of iron doping upon magnetism in the «114» magnetoelectric CaBaCo4O7 - Normandie Université Access content directly
Journal Articles Journal of Alloys and Compounds Year : 2016

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.
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hal-02184783 , version 1 (16-07-2019)

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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⟩
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