Artículo

Reversible switching of room temperature ferromagnetism in CeO 2-Co nanoparticles

Sacanell, Joaquin GonzaloIcon ; Paulin, Mariano AndrésIcon ; Ferrari, Valeria PaolaIcon ; Garbarino, G.; Leyva de Guglielmino, Ana Gabriela
Fecha de publicación: 04/2012
Editorial: American Institute of Physics
Revista: Applied Physics Letters
ISSN: 0003-6951
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:

Resumen

We investigated the reversible ferromagnetic (FM) behavior of pure and Co doped CeO 2 nanopowders. The as-sintered samples displayed an increasing paramagnetic contribution upon Co doping. Room temperature FM is obtained simply by performing thermal treatments in vacuum at temperatures as low as 500 °C and it can be switched off by performing thermal treatments in oxidizing conditions. The FM contribution is enhanced as we increase the time of the thermal treatment in vacuum. Those systematic experiments establish a direct relation between ferromagnetism and oxygen vacancies and open a path for developing materials with tailored properties.
Palabras clave: SPINTRONICS , DILUTED MAGNETIC OXIDES
 
Archivos asociados
Thumbnail
 
Tamaño: 587.6Kb
Formato: PDF
.
Licencia
info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/195402
URL: https://pubs.aip.org/aip/apl/article/100/17/172405/384693/Reversible-switching-o
DOI: http://dx.doi.org/10.1063/1.4705045
Colecciones
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Citación
Sacanell, Joaquin Gonzalo; Paulin, Mariano Andrés; Ferrari, Valeria Paola; Garbarino, G.; Leyva de Guglielmino, Ana Gabriela; Reversible switching of room temperature ferromagnetism in CeO 2-Co nanoparticles; American Institute of Physics; Applied Physics Letters; 100; 17; 4-2012; 1-4
Compartir
Altmétricas