Descripción del proyecto
Fotomagnetismo accesible y práctico con luz visible y a temperatura ambiente
El magnetismo está en el centro de las aplicaciones de memoria magnética actuales, como la grabación magnética de alta densidad y la memoria magnética de acceso aleatorio. El ferromagnetismo, una propiedad que permite mantener los estados de magnetización durante largos períodos de tiempo, y la conmutación ferromagnética son los elementos que lo permiten. De este modo, la conmutación ferromagnética puede realizarse de varias maneras. El equipo del proyecto LUX-INVENTA, financiado por el Consejo Europeo de Investigación, aprovechará los materiales fotomagnéticos, o «fotomagnetos», para permitir la conmutación ferromagnética con fotones solares que, en última instancia, son renovables. Los fotomagnetos actuales permanecen en el laboratorio porque requieren temperaturas de funcionamiento muy bajas. El equipo del proyecto LUX-INVENTA superará este obstáculo con novedosos fotomagnetos moleculares a temperatura ambiente gracias a una mejor comprensión de los procesos que tienen lugar durante la absorción de fotones por parte de los cromóforos fotomagnéticos.
Objetivo
Visible light provided by the Sun is the cleanest energy source one could ever imagine. Harvesting it is crucial for further development of science and technology as well as for reducing the ecological footprint of humanity. The efficient use of the visible spectrum of the Sun can take many forms and the direct photoexcitation of molecules resulting in a dramatic magnetization change - the so called photomagnetic effect - is one of them. In other words, sunlight photons could write, read and erase magnetic states of photomagnets. Photomagnets can be designed and prepared via a bottom-up modular approach using low-energy preparation methods developed by coordination, organometallic chemistry, supramolecular chemistry and crystal engineering with the support from physical and computational sciences. Photomagnets belong to the class of smart multifunctional molecular materials that become paramagnetic, ferromagnetic or simply change their magnetic properties upon illumination - a feature that is hardly accessible in conventional magnetic solids - metal alloys and oxides. Currently known photomagnets are merely laboratory curiosities due to extremely low operation temperatures below the boiling point of nitrogen (-196?C). Hence, the overarching goal of LUX-INVENTA is the discovery of room temperature (RT) photomagnets that would show light-induced ON/OFF ferromagnetic switching under normal conditions. This goal will be pursued alongside the deep understanding of the processes occurring during the absorption of a photon by photomagnetic chromophores - the molecular components responsible for the photomagnetic effect. The proposed research focuses on (i) the design and synthesis of novel photomagnetic chromophores, (ii) investigation of the mechanism of the photomagnetic switching and (iii) preparation of RT photomagnets by a rational incorporation of the photomagnetic chromophores in the structure of coordination polymers and metal-organic frameworks
Ámbito científico
- engineering and technologymaterials engineeringcrystals
- natural scienceschemical sciencesinorganic chemistryorganometallic chemistry
- natural scienceschemical sciencespolymer sciences
- natural sciencescomputer and information sciencescomputational science
- natural sciencesphysical sciencestheoretical physicsparticle physicsphotons
Palabras clave
Programa(s)
- HORIZON.1.1 - European Research Council (ERC) Main Programme
Régimen de financiación
HORIZON-ERC - HORIZON ERC GrantsInstitución de acogida
31-007 Krakow
Polonia