title: Co-Fe nanodumbbells: synthesis, structure, and magnetic properties.
abstract: We report the solution phase synthesis, the structural analysis, and the magnetic properties of hybrid nanostructures combining two magnetic metals. These nano-objects are characterized by a remarkable shape, combining Fe nanocubes on Co nanorods. The topological composition, the orientation relationship, and the growth steps have been studied by advanced electron microscopy techniques, such as HRTEM, electron tomography, and state-of-the-art 3-dimensional elemental mapping by EDX tomography. The soft iron nanocubes behave as easy nucleation centers that induce the magnetization reversal of the entire nanohybrid, leading to a drastic modification of the overall effective magnetic anisotropy.
authors.affiliation: Université de Toulouse ; INSA, UPS, LPCNO, CNRS-UMR5215, 135 avenue de Rangueil, 31077 Toulouse, France.
authors.forename: Nikos
authors.initials: N
authors.lastname: Liakakos
authors.forename: Christophe
authors.initials: C
authors.lastname: Gatel
authors.forename: Thomas
authors.initials: T
authors.lastname: Blon
authors.forename: Thomas
authors.initials: T
authors.lastname: Altantzis
authors.forename: Sergio
authors.initials: S
authors.lastname: Lentijo-Mozo
authors.forename: Cécile
authors.initials: C
authors.lastname: Garcia-Marcelot
authors.forename: Lise-Marie
authors.initials: LM
authors.lastname: Lacroix
authors.forename: Marc
authors.initials: M
authors.lastname: Respaud
authors.forename: Sara
authors.initials: S
authors.lastname: Bals
authors.forename: Gustaaf
authors.initials: G
authors.lastname: Van Tendeloo
authors.forename: Katerina
authors.initials: K
authors.lastname: Soulantica