The Excellent Science pillar aims to increase the EU’s global scientific competitiveness by reinforcing and extending the excellence of the Union's science base. It supports frontier research projects defined and driven by top researchers themselves through the European Research Council, funds mobility and training fellowships for experienced researchers, doctoral training networks, exchanges for researchers and entices more young people to a career in research, through Marie Skłodowska-Curie Actions, and invests in integrated and inter-connected world-class research infrastructures.
Pillar 1: Excellent Science
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Horizon Europe projects: Pillar 1
CavityMag: Cavity quantum electrodynamics control of magnetic phases in twisted van der Waals heterostructures
Specific programme: HORIZON-TMA-MSCA-PF-EF
UPV/EHU Partner Status: Beneficiary
UPV/EHU PI: Ángel Rubio Secades
Project start: 01/05/2023
Project end: 30/04/2025
Brief description:
To further increase performance and reduce energy consumption in technological devices, a new paradigm is needed exploiting quantum mechanical phenomena. An attractive route to enter this paradigm is by interfacing light and magnetic excitations in new optomagnetic devices, which ensures processing frequencies comparable with electronics and hold great promise for future memory, spintronics and quantum computing devices. This, however, requires a deeper understanding of strongly coupled light-matter systems and the interplay between magnetic, electronic, photonic and lattice excitations. A promising platform to explore exotic magnetic phenomena is magnetic van der Waals (vdW) materials, since the competition of anisotropy, quantum fluctuations and spin-orbit coupling make these materials prime candidates to host such states and susceptible to material engineering techniques. This can be exploited in cavity quantum electrodynamics (c-QED) and Moiré engineering to control the magnetic state. By combining c-QED with Moiré engineering, the goal of CavityMag is to construct schemes to control the magnetic state of vdW materials and to induce exotic magnetic phases. This will be achieved by developing state-of-the-art computational tools based on quantum electrodynamical density functional theory (QED-DFT) in combination with effective spin-photon models. This computational framework will be used to perform a systematic study of light-induced magnetic phases in twisted vdW materials, to gain a deeper understanding of how microscopic magnetic interactions can be modified, and to establish concrete protocols to control the macroscopic magnetic state. It will also be used to guide experimental efforts by identifying candidate materials and parameter regimes likely to host exotic states of great promise for the construction of new high performance and energy efficient technological devices
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Contact information:
International R&D Office UPV/EHU
Email: proyectoseuropeos@ehu.es