Project description
Force-free setup reveals intrinsic electronic orders in AV3Sb5 Kagome superconductors
Electron correlations can result in competing orders and exotic quantum phenomena. The recently discovered AV3Sb5 Kagome superconductors exhibit such correlations and competing correlated orders. Due to robust entanglement, manipulating one order can modify another. Scientists predict that this can result in an orbital-loop current, yet demonstrating this hypothesis experimentally is highly challenging with conventional approaches due to their sensitivity to experimental conditions. The ERC-funded Free-Kagome project aims to investigate three clear pathways to revealing the intrinsic electronic orders of AV3Sb5 Kagome superconductors. These pathways are based on a unique force-free setup with a controllable coupling between the focused-ion-beam fabricated microstructure and its supporting frame, setting the stage ready for exploring quantum functionalities in Kagome metals.
Objective
Electron correlations significantly modify electron self-organization in quantum materials, resulting in a landscape of competing orders and exotic quantum phenomena. The recently discovered AV3Sb5 family Kagome superconductors is an intriguing example of competing correlated orders with robust entanglement, as manipulating one order can affect or modify another, akin to the unique electromagnetic responses of multi-ferroics. These strongly entangled orders have led to an exciting hypothesis of orbital loop current, a prime example of correlation-driven electronic instabilities. Nevertheless, it renders the inherent characteristics practically inaccessible through conventional means, as even slight variations in experimental conditions can significantly affect their physical properties.
Our research plan is to examine the novel electronic response of the hypothesized orbital loop current in AV3Sb5. We will research the intrinsic dynamics of orbital phases and their unique electronic response via 1) atomically engineering the Kagome nets with the comprehensive material database serves as the Kagome toolbox, 2) heat/electric quenching of charge order for effectively tuning the interlayer coupling in a Kagome glass state, 3) spatial control of chiral domains with optical polarization, representing three unambiguous routes for revealing the intrinsic electronic orders in AV3Sb5.
These goals are ambitious yet entirely realizable: Free-Kagome’s research approach is based on a unique force-free setup that features controllable mechanical and thermal coupling between the focused-ion-beam (FIB) fabricated microstructure and its supporting frame based on the extremely soft membrane springs with designed geometry.
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 computer and information sciences databases
- engineering and technology materials engineering amorphous solids
- natural sciences mathematics pure mathematics geometry
- natural sciences physical sciences electromagnetism and electronics superconductivity
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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.
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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
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) ERC-2024-STG
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80539 MUNCHEN
Germany
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