Project description
Breakthroughs in magnetic and electronic technologies
Novel developments in magnetism have led to the discovery of altermagnets and a direct analogy between the d-wave spin-polarisation order in these materials and the unconventional d-wave superconducting order in cuprates. This has opened the door to groundbreaking discoveries in the field. The ERC-funded Super4Spin project aims to identify unconventional forms of magnetism beyond d-wave cuprate counterparts and build a periodic table of such wave magnets. Additionally, the project seeks to develop a generalised symmetry-based methodology to overcome current challenges and lay the groundwork for future breakthroughs. It will also pave the way for the creation of energy-efficient, spatially scalable and ultra-temporal spin-based electronics.
Objective
Our recent discovery of altermagnets has opened science and technology opportunities unparalleled in the two conventional classes of ferromagnets and antiferromagnets. Moreover, the direct analogy of a d-wave spin-polarization order in altermagnets to the unconventional d-wave superconducting order in cuprates suggests that we now hold a key to a vast uncharted territory of unconventional magnetism. In my project, I will identify unconventional forms of magnetism beyond the d-wave cuprate counterparts, including such prominent examples as magnetic counterparts of s$^pm$-wave pnictide superconductors or p-wave superfluid He-3. To build a periodic table of unconventional even and odd-parity wave magnets, I will develop a generalized symmetry-based methodology, tailored to a variable hierarchy of interactions across this large materials' territory. With the periodic table of unconventional magnetism, I will remove fundamental roadblocks in research and applications of relativistic and topological phases based on conventional magnets: the non-conserved spin of relativistic electrons, and the fragility of topological phases with non-dissipative electronic transport. I will demonstrate: (i) Even-parity-wave magnetism with time-reversal-symmetry breaking in the electronic structure accompanied by a vanishing net magnetization, and with conserved spin of relativistic electrons. (ii) Odd-parity-wave magnetism with time-reversal-invariant electronic structure, and with a strong exchange spin-splitting counterpart of the conventional weak relativistic spin splitting. (iii) Robust synergy of unconventional magnetism with topological phases in one common crystal. Armed with (i-iii), I will show the path to spin-conserved and non-dissipative electronic transport at ambient conditions using the unconventional magnets. This can pave the way for future ultra temporally and spatially scalable and energy-efficient spin-based electronics.
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.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques.
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Programme(s)
- HORIZON.1.1 - European Research Council (ERC) Main Programme
Topic(s)
Funding Scheme
HORIZON-ERC - HORIZON ERC GrantsHost institution
80539 Munchen
Germany