Resumen
Partial substitution of manganese by cobalt in rare-earth perovskites REMnO3 leads to unusual magnetic phenomena because of the simultaneous presence of Mn3+, Mn4+, Co2+ and Co3+ species. The magnetic nature of the RE cation plays a fundamental role in the magnetic properties. We present herein two specific families: for RE=La the magnetic behavior of the |Co+Mn| network is observed, while for Gd its strong magnetic moment interacts with the transition metals, leading to a spin reversal state. Magnetic interactions are maximized at x=0.50, as if two regimes exist: for x<0.5 Co substitutes Mn in the REMnO3 manganite, and for x>0.5 Mn substitutes Co in the RECoO3 cobaltite.
| Idioma original | English |
|---|---|
| Publicación | Journal of Magnetism and Magnetic Materials |
| Volumen | 320 |
| N.º | 14 |
| DOI | |
| Estado | Published - 1 jul 2008 |
Huella dactilar
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
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Magnetic properties of Mn-substituted GdCoxMn1-xO3 and LaCoxMn1-xO3 . / Barahona, P.; Peña, O.; Antunes, A. B.; Campos, C.; Pecchi, G.; Moreno, Y.; Moure, C.; Gil, V.
En: Journal of Magnetism and Magnetic Materials, Vol. 320, N.º 14, 01.07.2008.Resultado de la investigación: Article
TY - JOUR
T1 - Magnetic properties of Mn-substituted GdCoxMn1-xO3 and LaCoxMn1-xO3
AU - Barahona, P.
AU - Peña, O.
AU - Antunes, A. B.
AU - Campos, C.
AU - Pecchi, G.
AU - Moreno, Y.
AU - Moure, C.
AU - Gil, V.
PY - 2008/7/1
Y1 - 2008/7/1
N2 - Partial substitution of manganese by cobalt in rare-earth perovskites REMnO3 leads to unusual magnetic phenomena because of the simultaneous presence of Mn3+, Mn4+, Co2+ and Co3+ species. The magnetic nature of the RE cation plays a fundamental role in the magnetic properties. We present herein two specific families: for RE=La the magnetic behavior of the |Co+Mn| network is observed, while for Gd its strong magnetic moment interacts with the transition metals, leading to a spin reversal state. Magnetic interactions are maximized at x=0.50, as if two regimes exist: for x<0.5 Co substitutes Mn in the REMnO3 manganite, and for x>0.5 Mn substitutes Co in the RECoO3 cobaltite.
AB - Partial substitution of manganese by cobalt in rare-earth perovskites REMnO3 leads to unusual magnetic phenomena because of the simultaneous presence of Mn3+, Mn4+, Co2+ and Co3+ species. The magnetic nature of the RE cation plays a fundamental role in the magnetic properties. We present herein two specific families: for RE=La the magnetic behavior of the |Co+Mn| network is observed, while for Gd its strong magnetic moment interacts with the transition metals, leading to a spin reversal state. Magnetic interactions are maximized at x=0.50, as if two regimes exist: for x<0.5 Co substitutes Mn in the REMnO3 manganite, and for x>0.5 Mn substitutes Co in the RECoO3 cobaltite.
KW - Cooperative phenomena
KW - Ferromagnetic perovskite
KW - Spin reversal
UR - http://www.scopus.com/inward/record.url?scp=42749094177&partnerID=8YFLogxK
U2 - 10.1016/j.jmmm.2008.02.017
DO - 10.1016/j.jmmm.2008.02.017
M3 - Article
AN - SCOPUS:42749094177
VL - 320
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
SN - 0304-8853
IS - 14
ER -