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Multiscale approach to ALTerMAGnetism In Kagomes: From Functional Responses to Phase Competition and Superconductivity

Project description

Exploring a new type of magnetism found in kagome materials

Understanding how magnetism, electron forces and band topology interact is a major challenge in modern condensed matter physics. This is especially true for kagome lattice systems in the AVSb family of materials, which are predicted to host exotic phases characterised by charge density waves, time-reversal symmetry breaking, or even unconventional superconductivity. Supported by the Marie Skłodowska-Curie Actions programme, the ALTMAGIK project will investigate altermagnetism, a newly discovered form of magnetism, in kagome lattice materials, focusing on how different forms of altermagnetic ordering drive or interact with the electronic phases already detected in experiments. Beyond determining the origin and stability of these phases, the resulting theoretical framework will also predict novel, observable behaviours relevant to spintronics and superconducting applications.

Objective

The study of magnetism, a foundational topic in condensed matter physics, remains at the forefront of current research. Understanding the interplay between magnetic ordering, strong electron interactions, and band topology poses a significant challenge that lies at the heart of many important open questions in modern condensed matter physics. One of them is the understanding of the intricate phase diagram of a subset of Kagome systems, the AVSb family, featuring anomalous symmetry-broken phases and unconventional superconductivity. ALTMAGIK will address this topic under the perspective of altermagnetism, a recently proposed form of magnetism associated to zero net magnetization and spin-split Fermi surfaces, by studying its role as a driving mechanism for the exotic phenomena reported in the experiments. Different forms of altermagnetic ordering with finite or vanishing dipolar atomic moments will be studied combining different theoretical approaches ranging from macroscopic Ginzburg–Landau theories to microscopic non-perturbative calculations. The resulting framework will not only capture the conditions for the emergence and stability of these phases, but will also predict new measurable effects of interests in spintronics and superconducting technologies.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-GF - HORIZON TMA MSCA Postdoctoral Fellowships - Global Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2025-PF

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Coordinator

UNIVERSITAT ZURICH
Net EU contribution
€ 446 228,88
Address
RAMISTRASSE 71
8006 Zurich
Switzerland
Region
Schweiz/Suisse/Svizzera Zürich Zürich
Activity type
Higher or Secondary Education Establishments
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Total cost
No data

Partners (1)