Project description
Checking new computational method for high-temperature superconductivity
Superconductors, which carry electricity with zero energy loss, could completely reshape the way we power the world. Nevertheless, the science behind how they work is still not fully understood. In this context, the ERC-funded RealSuper project aims to take on this challenge. Building on recent breakthroughs in modelling nickelate superconductors, it will use cutting-edge Feynman diagram techniques to study how spin and charge fluctuations contribute to superconductivity in both nickelates and cuprates. By aligning theoretical predictions with experimental results, the team hopes to uncover the underlying mechanism behind high-Tc superconductivity. This understanding could eventually lead to the creation of new materials that bring us closer to efficient, room-temperature power transmission.
Objective
Feynman diagrammatic extensions of dynamical mean-field theory are powerful enough for calculating unconventional superconductivity in actual materials. As a proof of principle, we were able to predict the superconducting phase diagram,
the electronic and magnetic spectra of infinite-layer nickelates - with astonishing accuracy. At the same time, a new class of finite-layer nickelates, La_n+1Ni_nO_3n+1, was discovered last year. These Ruddlesden-Popper nickelates led to a boost of scientific activity and put common wisdom of superconductivity in nickelates and cuprates into question, as clearly multi Ni orbitals are relevant.
Our objective is to (1) realistically model superconductivity in these finite-layer nickelates and in cuprates, to achieve a similarly good agreement with experiment as for infinite-layer nickelates, and to quantify the relative importance of spin and charge fluctuations. We will validate our calculations against a carefully selected variety of experiments: photoemission and optical spectroscopy, neutron and resonant inelastic x-ray scattering, the superconducting temperature Tc and gap, its doping and pressure dependence. If successful and achieving a consistent picture, we can settled the arguably biggest quest of solid state theory: the physical origin of high-Tc superconductivity.
Already in the normal phase, we can (2) study exciting physics: pseudogaps, waterfalls, strange metal behavior, pi-tons, spin and charge density wave order. With an improved understanding of high-Tc superconductivity, a further aim is to (3) eventually predict how to optimize superconductivity in nickelates and cuprates and even to identify new classes of superconductors. Advancing our understanding and developing a predictive power is how theory can contribute to push Tc toward room temperature, which bears the prospects to revolutionize how we generate, transport and consume electric energy.
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 electromagnetism and electronics superconductivity
- natural sciences physical sciences optics spectroscopy
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Keywords
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.1.1 - European Research Council (ERC)
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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
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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-ERC - HORIZON ERC Grants
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Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) ERC-2024-ADG
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
1040 Wien
Austria
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