Skip to main content
Ir a la página de inicio de la Comisión Europea (se abrirá en una nueva ventana)
español es
CORDIS - Resultados de investigaciones de la UE
CORDIS
Contenido archivado el 2024-05-27

NOISE IN SPIN ELECTRONICS DEVICES

Objetivo

The emerging science of < spin electronics > offers a new exciting way of meeting the need for high-speed sensitive detection of densely stored data. An example of a new generation of electronic devices is the GMR read-head, now commercially available. In common with all electronic systems, noise is expected to limit the performance of this technology, but has not been investigated so far. In magnetic materials noise can be generated by current-related events and magnetic fluctuations whose respective weights strongly depend on the nature of the magnetic systems (e.g. all-metal spin devices, tunnel spin valves or oxide-based spin systems). In addition, the geometry and shape of the devices can greatly influence noise levels because magnetic fluctuations can be of a different nature in very small elements while electronic transport is modified by ballistic effects. The aim of this project is to quantify and understand the different sources of noise in various spin systems (model and commercial) and propose ways of optimising spin devices.

OBJECTIVES
We propose to quantify and understand noise sources of magnetic and electronic origins in spin electronic devices and squids used as field sensors by addressing the following issues:
- Characterise and understand electronic noise in small magnetic structures including GMR and TMR sensors, patterned perovkites oxide films and multi-layers with high-Tc superconductors and manganites, in a spectral range between DC and several hundred MHz;
- Modelling of the noise. Separation of the different sources electrical noise, magnetic domain wall fluctuations. Include the effect of the temperature (phonons, spin waves);
- Development of high-Tc squids systems optimised for magneto-encephalography;
- Fabrication of high-Tc microsquids for microscopic magnetic imaging;
- Study of magnetic fluctuations with high-Tc microsquids in small magnetic structures. Correlate magnetic fluctuations and electronic noise;
- Optimise the design of low noise GMR and TMR sensors for high density read heads;
- Assess the market potential for spin electronic based devices.

DESCRIPTION OF WORK
In order to achieve the expected objectives, the work will proceed in four steps detailed below: The first step is to study in detail electronic noise in different types of magnetic sensors following the programme below:
Characterise and understand electronic noise in small metallic magnetic structures. Characterise and understand electronic noise in patterned perovskites oxide films and multilayers including high-Tc superconductors and manganites. Characterise and understand electronic noise in GMR ad TMR sensors Modelling of the noise. Separation of the different sources: electrical noise, magnetic domain wall fluctuations. Effect of the temperature (phonons, spin waves).
The second step is to develop High-Tc squids down to micron size for various applications in the following stages : Development of high-Tc squids optimised for magneto-encephalography. Fabrication of high-Tc microsquids for microscopic magnetic imaging and noise mapping. Noise mapping of mesoscale magnetic elements and devices.
The third step is to optimise the design of low noise GMR and TMR sensors for high density reading as detailed: Comprehensive study of the effect of size, shape and anisotropy on the noise figure in GMR and TMR sensors. to study the noise of a complete read head. propose a complete read head design for high density storage.
The fourth step is to assess the market potential for spin electronic based devices.

Ámbito científico (EuroSciVoc)

CORDIS clasifica los proyectos con EuroSciVoc, una taxonomía plurilingüe de ámbitos científicos, mediante un proceso semiautomático basado en técnicas de procesamiento del lenguaje natural. Véas: El vocabulario científico europeo..

Para utilizar esta función, debe iniciar sesión o registrarse

Programa(s)

Programas de financiación plurianuales que definen las prioridades de la UE en materia de investigación e innovación.

Tema(s)

Las convocatorias de propuestas se dividen en temas. Un tema define una materia o área específica para la que los solicitantes pueden presentar propuestas. La descripción de un tema comprende su alcance específico y la repercusión prevista del proyecto financiado.

Convocatoria de propuestas

Procedimiento para invitar a los solicitantes a presentar propuestas de proyectos con el objetivo de obtener financiación de la UE.

Datos no disponibles

Régimen de financiación

Régimen de financiación (o «Tipo de acción») dentro de un programa con características comunes. Especifica: el alcance de lo que se financia; el porcentaje de reembolso; los criterios específicos de evaluación para optar a la financiación; y el uso de formas simplificadas de costes como los importes a tanto alzado.

CSC - Cost-sharing contracts

Coordinador

COMMISSARIAT A L'ENERGIE ATOMIQUE
Aportación de la UE
Sin datos
Dirección
31-33 RUE DE LA FEDERATION
75752 PARIS CEDEX 15
Francia

Ver en el mapa

Coste total

Los costes totales en que ha incurrido esta organización para participar en el proyecto, incluidos los costes directos e indirectos. Este importe es un subconjunto del presupuesto total del proyecto.

Sin datos

Participantes (5)

Mi folleto 0 0