Objetivo The intended aim of this project is to explore the application potential of novel Spin-Transfer Oscillators (STO) as tunable and ultra-narrow band microwave radiation sources for mobile and wireless telecommunication technology. The main technological interest of STO devices, which correspond to nano-structured magnetic multilayer pumped by a spin-polarized electrical current and emitting microwave radiation, is their compatibility with monolithic integration. Our proposal specifically addresses the bottleneck issue of power conversion efficiency between dc current pumping and microwave emission of radiation. We propose to take advantage of the phase-locking mechanisms between coupled oscillators to increase significantly the device performance. Our primary objective is to engineer large arrays of coherently coupled oscillators. To achieve this goal, we shall investigate in detail 4 different types of coupling mechanism between neighboring oscillators which may induce phase-locking of the ensemble: 1) coupling through the self-generated microwave current, 2) coupling through the dipolar magnetic field, 3) coupling through the spin-diffusion of the conduction electrons, 4) coupling mediated by spin-waves. Achieving phase-locking between neighboring oscillators also requires substantial progress in our understanding of the fundamental mechanisms that are involved during momentum-transfer from spin-polarized current to the magnetic moments. Our secondary objective is to address both experimentally and theoretically 3 knowledge gaps: identifying (spatio-temporal profile and relaxation times) the fundamental spin-wave eigen-modes excited by a dc current in nano-structured magnetic heterojunctions; understanding the fundamental mechanism underlying non-local effects associated with the diffusion of spin-polarized electrons and its action on the dynamics of the whole system; investigating the magnetization dynamics of a nano-structure in the non-linear regime. Palabras clave Arrays of Coherent Nano MASER Magnetic Resonance Microscopes Microwave Components Mobile and Wireless Technology Spin Transfer Oscillators Spin-Wave Spectroscopy Spintronics Programa(s) FP7-NMP - Specific Programme "Cooperation": Nanosciences, Nanotechnologies, Materials and new Production Technologies Tema(s) NMP-2007-2.2-2 - Nanostructured materials with tailored magnetic properties Convocatoria de propuestas FP7-NMP-2007-SMALL-1 Consulte otros proyectos de esta convocatoria Régimen de financiación CP-FP - Small or medium-scale focused research project Coordinador COMMISSARIAT A L ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES Aportación de la UE € 443 314,00 Dirección RUE LEBLANC 25 75015 PARIS 15 Francia Ver en el mapa Región Ile-de-France Ile-de-France Paris Tipo de actividad Research Organisations Contacto administrativo Olivier Klein (Dr.) Enlaces Contactar con la organización Opens in new window Sitio web Opens in new window Coste total Sin datos Participantes (5) Ordenar alfabéticamente Ordenar por aportación de la UE Ampliar todo Contraer todo CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS Francia Aportación de la UE € 529 338,00 Dirección RUE MICHEL ANGE 3 75794 Paris Ver en el mapa Región Ile-de-France Ile-de-France Paris Tipo de actividad Research Organisations Contacto administrativo Michele Saumon (Dr.) Enlaces Contactar con la organización Opens in new window Sitio web Opens in new window Coste total Sin datos Westfälische Wilhelms-Universität Münster Alemania Aportación de la UE € 285 200,00 Dirección SCHLOSSPLATZ 2 48149 MUENSTER Ver en el mapa Región Nordrhein-Westfalen Münster Münster, Kreisfreie Stadt Tipo de actividad Higher or Secondary Education Establishments Contacto administrativo Sergei Demokritov (Prof.) Enlaces Contactar con la organización Opens in new window Sitio web Opens in new window Coste total Sin datos THE UNIVERSITY OF EXETER Reino Unido Aportación de la UE € 299 918,00 Dirección THE QUEEN'S DRIVE NORTHCOTE HOUSE EX4 4QJ Exeter Ver en el mapa Región South West (England) Devon Devon CC Tipo de actividad Higher or Secondary Education Establishments Contacto administrativo Enda Clarke (Dr.) Enlaces Contactar con la organización Opens in new window Sitio web Opens in new window Coste total Sin datos UNIVERSITE CATHOLIQUE DE LOUVAIN Bélgica Aportación de la UE € 288 800,00 Dirección PLACE DE L UNIVERSITE 1 1348 Louvain La Neuve Ver en el mapa Región Région wallonne Prov. Brabant Wallon Arr. Nivelles Tipo de actividad Higher or Secondary Education Establishments Contacto administrativo Luc Piraux (Prof.) Enlaces Contactar con la organización Opens in new window Sitio web Opens in new window Coste total Sin datos ISTITUTO P.M. SRL Italia Aportación de la UE € 197 640,00 Dirección VIA GIUSEPPE GRASSI 4 10138 Torino Ver en el mapa Región Nord-Ovest Piemonte Torino Tipo de actividad Private for-profit entities (excluding Higher or Secondary Education Establishments) Contacto administrativo Konstantin Zvezdin (Dr.) Enlaces Contactar con la organización Opens in new window Sitio web Opens in new window Coste total Sin datos
