Project description
Parameter-free approach for resonant inelastic X-ray scattering spectra of phonon excitations
Heat propagation plays a crucial role in the physical properties of solids and molecules, and is therefore critical to materials and device design, particularly as devices become ever smaller and more complex. Heat, the vibration of atoms and molecules, can be thought of as a flow of particles, namely phonons – quantum ‘packets’ of vibrational energy. Electron-phonon interaction is ubiquitous and the strength of electron-phonon coupling (EPC) plays an essential role in a plethora of properties and phenomena. With the support of the Marie Skłodowska-Curie Actions programme, the RENOIR project aims to develop a new approach to calculate and predict resonant inelastic X-ray scattering spectra for phonon excitations, a promising technique for revealing EPC. RENOIR’s novel parameter-free methodology will focus first on high-temperature superconducting materials and heterostructures.
Objective
The electron-phonon interaction is ubiquitous in many-particle physics and chemistry. The strength of the electron-phonon coupling (EPC) determines countless physical properties and phenomena. Notably, it gives rise to conventional superconductivity and plays a key role in high-temperature superconductivity. The main goal of RENOIR is to accurately determine the EPC strength in materials that are relevant for technological applications, providing crucial insights into the behaviour of excitons and phonon-driven phenomena. Resonant inelastic x-ray scattering (RIXS) spectroscopy holds the promise to access phonon excitations with a remarkable high-resolution, thanks to the significant technical advancements achieved in recent years, providing momentum dependence and bulk sensitivity. However, the interpretation of measured signatures remains challenging since different excitations are coupled through interactions. Indeed, although RIXS is used to measure EPC, it primarily reveals exciton-phonon coupling, due to the interaction with a core hole. So far, theoretical approaches mainly rely on oversimplified models that use adjustable parameters to fit experimental results, limiting their applicability. RENOIR aims to convert this challenge into the opportunity to realise the great potential of RIXS to determine EPC in quantum materials. RENOIR will develop a novel parameter-free methodology to calculate RIXS spectra, combining accurate and reliable approaches, such as the Bethe-Salpeter Equation within Green’s functions theory for excitons, and Density Functional Perturbation Theory for phonons. As a primary application, RENOIR will focus on high-temperature superconducting materials and heterostructures, celebrated for their transformative power in electronics and energy applications. Moreover, the resulting software will be made freely available to a very wide community, opening the way for understanding and predicting RIXS measurements of EPC in many other materials.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences physical sciences condensed matter physics quasiparticles
- natural sciences computer and information sciences software
- natural sciences physical sciences atomic physics
- natural sciences physical sciences electromagnetism and electronics superconductivity
- natural sciences physical sciences optics spectroscopy
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Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA)
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Topic(s)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships
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Call for proposal
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) HORIZON-MSCA-2023-PF-01
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20122 Milano
Italy
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