Project description
New magnetic phase could transform spintronics applications
Magnetically ordered crystals are typically split into two phases: ferromagnetism and antiferromagnetism. Funded by the European Research Council, the ALTERMAG project will explore a third basic magnetic phase, termed ‘altermagnetism’, which combines aspects of both ferromagnetism and antiferromagnetism. Altermagnets demonstrate strong time-reversal symmetry breaking and spin splitting in electronic bands, characteristics typically seen in ferromagnetism, within crystals with antiparallel compensated magnetic order, a feature of antiferromagnetism. ALTERMAG will focus on identifying materials that exhibit altermagnetism and understanding its anisotropic nature. Project findings could open up a new avenue in spintronics, enabling the development of devices that leverage non-relativistic spin-conserving phenomena. ALTERMAG also aims to demonstrate altermagnetic giant-magnetoresistive multi-layer memory devices and single-layer nanoscale devices with logic-in-memory analogue functionalities.
Objective
Magnetically ordered crystals are traditionally divided into two basic phases -- ferromagnetism and antiferromagnetism. The ferromagnetic order offers a range of phenomena and device applications. The vanishing net magnetization in antiferromagnets is potentially favorable for spatial and temporal scalability of devices. Recently, our team and others have predicted instances of strong time-reversal symmetry breaking and spin splitting in electronic bands, typical of ferromagnetism, in crystals with antiparallel compensated magnetic order, typical of antiferromagnetism. Our central idea, resolving this apparent fundamental conflict in magnetism, is that symmetry classifies a third basic magnetic phase. Its alternating spin polarizations in both crystal-structure real space and electronic-structure momentum space suggest a term altermagnetism. We will demonstrate that altermagnets combine merits of ferromagnets and antiferromagnets, that were regarded as principally incompatible, and have merits unparalleled in either of the two traditional basic magnetic phases. In Objective 1 we will establish materials landscape of altermagnetism and, in Objective 2, show how its anisotropic (d-wave) nature enriches fundamental physics concepts of lifted Kramers spin-degeneracy, Fermi-liquid instabilities and electron quasiparticles. This will underpin our development of a new avenue in spintronics, elusive within the two traditional magnetic phases, based on strong non-relativistic spin-conserving phenomena, without magnetization imposed scalability limitations, and with complex functionalities. In Objective 3 we will demonstrate altermagnetic giant-magnetoresistive multi-layer memory devices. In Objective 4 we will realize logic-in-memory analog functionalities in single-layer nano-scale devices via atomically-sharp altermagnetic domain walls, written by pulses scaled down to femtoseconds, and forming networks of self-assembled atomic-scale giant-magnetoresitive junctions.
Fields of science (EuroSciVoc)
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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.
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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)
MAIN PROGRAMME
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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-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-2022-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.
182 21 Praha 8
Czechia
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.