Projet ANR-07-BLAN-0296 – BATMAG : Croissance, magnétisme et propriétés de transport de nanobatonnets de cobalt organisés
Programme : Blanc (BLANC) 2007
Année de financement : 2007
Coordinateur du projet : CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - DELEGATION REGIONALE MIDI-PYRENEES (CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - DELEGATION REGIONALE MIDI-PYRENEES)
Partenaires : Centre national de la recherche scientifique; Centre national de la recherche scientifique; Institut national des sciences appliquées de Toulouse
Montant : 450000.0 euros
Date de début : 2007
Durée : 36 mois
Résumé : Abstract: The aim of our project is to develop a magnetic media of very high density and the adapted read/write technique for such media. The media will be grown by an original approach from 3D Co islands organised deposited on a substrate that will act as nucleation centres for further growth of Co nanorods perpendicular to the surface. The growth of Co islands will be achieved by UHV sputtering while the Co sticks will be grown up by using a mild chemistry approach based on the decomposition of organometallic compounds. These systems should find a first application in high density recording media made of bits constituted by single anisotropic nanorod with perpendicular magnetisation. Succeeding in growing these Co nanosticks on a magnetic metal / insulator bilayer, would make then possible the design of Magnetic Tunnel Junctions (MTJs) with nanometer size, allowing the study of the magnetoresistance and spin transfer phenomena in a single nanorod for future spintronic applications. -  To address each nanorod, the read/write method will consist on handling the magnetization of these nano-sticks by the injection of a current and measuring the resistivity of the tunnel nano-junction with a weaker current (reading). We will apply this technique both on GMR and TMR stacks nanostructured as nano pillars by the usual nanofabrication methods. As an alternative, we will develop an in contact AFM tip approach.To get a stable contact of low resistance, we will use tips fully metallic. -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 ...