title: Magnetic and Magnetoresistive Properties of 3D Interconnected NiCo Nanowire Networks.
abstract: Track-etched polymer membranes with crossed nanochannels have been revealed to be most suitable as templates to produce large surface area and mechanically stable 3D interconnected nanowire (NW) networks by electrodeposition. Geometrically controlled NW superstructures made of NiCo ferromagnetic alloys exhibit appealing magnetoresistive properties. The combination of exact alloy compositions with the spatial arrangement of NWs in the 3D network is decisive to obtain specific magnetic and magneto-transport behavior. A proposed simple model based on topological aspects of the 3D NW networks is used to accurately determine the anisotropic magnetoresistance ratios. Despite of their complex topology, the microstructure of Co-rich NiCo NW networks display mixed fcc-hcp phases with the c-axis of the hcp phase oriented perpendicular to their axis. These interconnected NW networks have high potential as reliable and stable magnetic field sensors.
authors.affiliation: Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, Place Croix du Sud 1, Louvain-la-Neuve, B-1348, Belgium.
authors.forename: Tristan
authors.initials: T
authors.lastname: da Câmara Santa Clara Gomes
authors.affiliation: Instituto de Investigaciones en Materiales - Unidad Morelia, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro No. 8701 Col. Ex Hacienda de San José de la Huerta, Morelia, 58190, Mexico. delatorre@iim.unam.mx.
authors.forename: Joaquín
authors.initials: J
authors.lastname: De La Torre Medina
authors.affiliation: Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, Place Croix du Sud 1, Louvain-la-Neuve, B-1348, Belgium.
authors.forename: Matthieu
authors.initials: M
authors.lastname: Lemaitre
authors.affiliation: Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, Place Croix du Sud 1, Louvain-la-Neuve, B-1348, Belgium.
authors.forename: Luc
authors.initials: L
authors.lastname: Piraux
keywords: 3D nanowire network; Anisotropic magnetoresistance; Ferromagnetic alloys; Nanochannel-confined electrodeposition