Magnetic properties of Mn-substituted GdCo(x)Mn(1-x)O(3) and LaCo(x)Mn(1-x)O(3)

Barahona P.; Peña O.; Antunes, AB; Campos C.; Pecchi G.; Moreno Y.; Moure C.; Gil, V

Abstract

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. © 2008 Elsevier B.V. All rights reserved.

Más información

Título según WOS: Magnetic properties of Mn-substituted GdCo(x)Mn(1-x)O(3) and LaCo(x)Mn(1-x)O(3)
Título según SCOPUS: Magnetic properties of Mn-substituted GdCoxMn1-xO3 and LaCoxMn1-xO3
Título de la Revista: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volumen: 320
Número: 14
Editorial: Elsevier
Fecha de publicación: 2008
Página de inicio: E61
Página final: E64
Idioma: English
URL: http://linkinghub.elsevier.com/retrieve/pii/S0304885308000875
DOI:

10.1016/j.jmmm.2008.02.017

Notas: ISI, SCOPUS