Buscar

 Detalle_Publicacion

On the exchange bias effect in NiO nanoparticles with a core(antiferromagnetic)/shell (spin glass) morphology

Abstract: The unexpected appearance of magnetic hysteresis and exchange bias effects in nominally antiferromagnetic NiO nanoparticles is usually explained in terms of a core/shell morphology, where a spin glass-like shell is exchange coupled to an antiferromagnetic core. However, recent studies have challenged the validity of this assumption for small enough NiO nanoparticles. In this work we present proof of the core/shell model for NiO nanoparticles with sizes below 10 nm by combining neutron powder diffraction and magnetic measurements. In addition, we have verified that the exchange bias effect persists even when the particle size is reduced down to 4 nm.

 Congreso: Meeting of the Spanish Neutron Scattering Association (7º : 2014 : Pamplona)

 Fuente: Journal of Physics: Conference Series 663 (2015) 012001

Editorial: Institute of Physics

 Año de publicación: 2015

Nº de páginas: 5

Tipo de publicación: Artículo de Revista

 DOI: 10.1088/1742-6596/663/1/012001

ISSN: 1742-6588,1742-6596

Proyecto español: MAT2011-27573-C04

Url de la publicación: https://doi.org/10.1088/1742-6596/663/1/012001

Autores/as

RINALDI MONTES, NATALIA MAGDALENA

PEDRO GORRIA KORRES

MARTÍNEZ BLANCO, DAVID

FUERTES ARIAS, ANTONIO BENITO

FERNÁNDEZ GUBIEDA, M. L.

ALONSO, J.

OLIVI, LUCA

AQUILANTI, GIULIANA

PUENTE ORENCH, I.

JESUS ANGEL BLANCO RODRIGUEZ