title: Controlled 3D-coating of the pores of highly ordered mesoporous antiferromagnetic Co3O4 replicas with ferrimagnetic Fe(x)Co(3-x)O4 nanolayers.
abstract: The controlled filling of the pores of highly ordered mesoporous antiferromagnetic Co3O4 replicas with ferrimagnetic FexCo3-xO4 nanolayers is presented as a proof-of-concept toward the integration of nanosized units in highly ordered, heterostructured 3D architectures. Antiferromagnetic (AFM) Co3O4 mesostructures are obtained as negative replicas of KIT-6 silica templates, which are subsequently coated with ferrimagnetic (FiM) FexCo3-xO4 nanolayers. The tuneable magnetic properties, with a large exchange bias and coercivity, arising from the FiM/AFM interface coupling, confirm the microstructure of this novel two-phase core-shell mesoporous material. The present work demonstrates that ordered functional mesoporous 3D-materials can be successfully infiltrated with other compounds exhibiting additional functionalities yielding highly tuneable, versatile, non-siliceous based nanocomposites.
authors.affiliation: Departament de Física, Facultat de Ciències, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain. eva.pellicer@uab.cat
authors.forename: Eva
authors.initials: E
authors.lastname: Pellicer
authors.forename: Moisés
authors.initials: M
authors.lastname: Cabo
authors.forename: Alberto
authors.initials: A
authors.lastname: López-Ortega
authors.forename: Marta
authors.initials: M
authors.lastname: Estrader
authors.forename: Lluís
authors.initials: L
authors.lastname: Yedra
authors.forename: Sònia
authors.initials: S
authors.lastname: Estradé
authors.forename: Francesca
authors.initials: F
authors.lastname: Peiró
authors.forename: Zineb
authors.initials: Z
authors.lastname: Saghi
authors.forename: Paul
authors.initials: P
authors.lastname: Midgley
authors.forename: Emma
authors.initials: E
authors.lastname: Rossinyol
authors.forename: Igor V
authors.initials: IV
authors.lastname: Golosovsky
authors.forename: Alvaro
authors.initials: A
authors.lastname: Mayoral
authors.forename: Joan D
authors.initials: JD
authors.lastname: Prades
authors.forename: Santiago
authors.initials: S
authors.lastname: Suriñach
authors.forename: Maria Dolors
authors.initials: MD
authors.lastname: Baró
authors.forename: Jordi
authors.initials: J
authors.lastname: Sort
authors.forename: Josep
authors.initials: J
authors.lastname: Nogués