Objectif The applied science of addressing memory elements. Ferromagnetic and ferroelectric materials are sometimes used as data storage media to encode information. I propose to investigate thin film heterostructure nanodevices in which these two ground states compete and cooperate to create extra degrees of freedom in the read-write process. Specifically, I am looking to encode information electrically and read it magnetically. This is because it is easy to write electrically and read magnetically, but the reverse statements are not true. I will therefore combine the best aspects of the existing technologies, namely, the electric-write process of FRAM, and the non-volatility and magnetic-read processes of disc-drives and MRAM. Two oxide materials systems will be explored by growing epitaxial films using pulsed laser deposition:1)Multiferroic materials. These are single phase and ferromagnetic, ferroelectric and ferroelastic. It may be possible to address them both electrically and magnetically.2)Ferromagnetic/ferroelectric heterostructures. By electrically writing information into a ferroelectric layer that displays strong piezoelectric effects, it will be possible to generate elastic strains that can be used to write magnetic information into an adjacent ferromagnetic layer.Nanoscale proof-of-principle devices will be fabricated in the new Cambridge Nanotechnology Centre from films of the above materials systems. A scientific study of mesoscopic texture will be simultaneously undertaken in the materials described above. There is now widespread interest in textures that extend over intermediate (sub micron) length scales. I will study such textures using the electron microscopy suite of the host institute. Exploitation. The research is novel because the materials systems required to co-host coupled ferromagnetic and ferroelectric order are in their infancy. Champ scientifique engineering and technologynanotechnologynatural sciencesphysical sciencesopticsmicroscopyelectron microscopyengineering and technologymaterials engineeringcoating and filmsnatural sciencesphysical sciencesopticslaser physicspulsed lasers Mots‑clés Device physics Nanotechnology Risk Assessment data storage ferroelectricity ferromagnetism magnetoelectric coupling multiferroics nanotechnology piezoelectricity strain coupling Programme(s) FP6-MOBILITY - Human resources and Mobility in the specific programme for research, technological development and demonstration "Structuring the European Research Area" under the Sixth Framework Programme 2002-2006 Thème(s) MOBILITY-2.1 - Marie Curie Intra-European Fellowships (EIF) Appel à propositions FP6-2002-MOBILITY-5 Voir d’autres projets de cet appel Régime de financement EIF - Marie Curie actions-Intra-European Fellowships Coordinateur THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF CAMBRIDGE Contribution de l’UE Aucune donnée Adresse The Old Schools, Trinity Lane CAMBRIDGE Royaume-Uni Voir sur la carte Liens Site web Opens in new window Coût total Aucune donnée
