Altermagnetism information

An example of an altermagnetic ordering, with the direction of the spins and the spatial orientation of the atoms alternating on the neighbouring sites in the crystal.

In condensed matter physics, altermagnetism is a type of persistent magnetic state in ideal crystals.^[1]^[2]^[3]^[4]^[5] Altermagnetic structures are collinear and crystal-symmetry compensated, resulting in zero net magnetisation.^[1]^[5]^[6]^[7] Unlike in an ordinary collinear antiferromagnet, another magnetic state with zero net magnetization, the electronic bands in an altermagnet are not Kramers degenerate, but instead depend on the wavevector in a spin-dependent way.^[1] Related to this feature, key experimental observations were published in 2024.^[8]^[9] It has been speculated that altermagnetism may have applications in the field of spintronics.^[6]^[10]

^ ^a ^b ^c "Altermagnetism—A New Punch Line of Fundamental Magnetism". Physical Review X. 2022-12-08. doi:10.1103/physrevx.12.040002. Retrieved 2023-12-02.
^ Mazin, Igor (2024-01-08). "Altermagnetism Then and Now". Physical Review X. 17: 4. arXiv:2105.05820. doi:10.1103/PhysRevX.12.031042.
^ Mazin, Igor; González-Hernández, Rafael; Šmejkal, Libor (2023-09-05), Induced Monolayer Altermagnetism in MnP(S,Se)$_3$ and FeSe, arXiv:2309.02355, retrieved 2024-02-15
^ Wilkins, Alex (14 February 2024). "The existence of a new kind of magnetism has been confirmed". New Scientist. Retrieved 2024-02-15.
^ ^a ^b Savitsky, Zack. "Researchers discover new kind of magnetism". Science.org. Retrieved 16 February 2024.
^ ^a ^b Šmejkal, Libor; Sinova, Jairo; Jungwirth, Tomas (2022-12-08). "Emerging Research Landscape of Altermagnetism". Physical Review X. 12 (4): 040501. arXiv:2204.10844. Bibcode:2022PhRvX..12d0501S. doi:10.1103/PhysRevX.12.040501.
^ Šmejkal, Libor; Sinova, Jairo; Jungwirth, Tomas (2022-09-23). "Altermagnetism: spin-momentum locked phase protected by non-relativistic symmetries". Physical Review X. 12 (3): 031042. arXiv:2105.05820. doi:10.1103/PhysRevX.12.031042. ISSN 2160-3308.
^ Krempaský, J.; Šmejkal, L.; D’Souza, S. W.; Hajlaoui, M.; Springholz, G.; Uhlířová, K.; Alarab, F.; Constantinou, P. C.; Strocov, V.; Usanov, D.; Pudelko, W. R.; González-Hernández, R.; Birk Hellenes, A.; Jansa, Z.; Reichlová, H. (February 2024). "Altermagnetic lifting of Kramers spin degeneracy". Nature. 626 (7999): 517–522. arXiv:2308.10681. doi:10.1038/s41586-023-06907-7. ISSN 1476-4687. PMID 38356066.
^ Fedchenko, Olena; Minár, Jan; Akashdeep, Akashdeep; D’Souza, Sunil Wilfred; Vasilyev, Dmitry; Tkach, Olena; Odenbreit, Lukas; Nguyen, Quynh; Kutnyakhov, Dmytro; Wind, Nils; Wenthaus, Lukas; Scholz, Markus; Rossnagel, Kai; Hoesch, Moritz; Aeschlimann, Martin (2024-02-02). "Observation of time-reversal symmetry breaking in the band structure of altermagnetic RuO 2". Science Advances. 10 (5): eadj4883. doi:10.1126/sciadv.adj4883. ISSN 2375-2548. PMC 10830110. PMID 38295181.
^ Arrell, Miriam (February 14, 2024). "Altermagnetism proves its place on the magnetic family tree". ScienceDaily. Retrieved 2024-02-15.

[punchline-1] "Altermagnetism—A New Punch Line of Fundamental Magnetism". Physical Review X. 2022-12-08. doi:10.1103/physrevx.12.040002. Retrieved 2023-12-02.

[mazin-2] Mazin, Igor (2024-01-08). "Altermagnetism Then and Now". Physical Review X. 17: 4. arXiv:2105.05820. doi:10.1103/PhysRevX.12.031042.

[mazin_smejkal-3] Mazin, Igor; González-Hernández, Rafael; Šmejkal, Libor (2023-09-05), Induced Monolayer Altermagnetism in MnP(S,Se)$_3$ and FeSe, arXiv:2309.02355, retrieved 2024-02-15

[4] Wilkins, Alex (14 February 2024). "The existence of a new kind of magnetism has been confirmed". New Scientist. Retrieved 2024-02-15.

[savitsky_science-5] Savitsky, Zack. "Researchers discover new kind of magnetism". Science.org. Retrieved 16 February 2024.

[smejkal_landscape-6] Šmejkal, Libor; Sinova, Jairo; Jungwirth, Tomas (2022-12-08). "Emerging Research Landscape of Altermagnetism". Physical Review X. 12 (4): 040501. arXiv:2204.10844. Bibcode:2022PhRvX..12d0501S. doi:10.1103/PhysRevX.12.040501.

[smejkal_symm-7] Šmejkal, Libor; Sinova, Jairo; Jungwirth, Tomas (2022-09-23). "Altermagnetism: spin-momentum locked phase protected by non-relativistic symmetries". Physical Review X. 12 (3): 031042. arXiv:2105.05820. doi:10.1103/PhysRevX.12.031042. ISSN 2160-3308.

[krempasky2024-8] Krempaský, J.; Šmejkal, L.; D’Souza, S. W.; Hajlaoui, M.; Springholz, G.; Uhlířová, K.; Alarab, F.; Constantinou, P. C.; Strocov, V.; Usanov, D.; Pudelko, W. R.; González-Hernández, R.; Birk Hellenes, A.; Jansa, Z.; Reichlová, H. (February 2024). "Altermagnetic lifting of Kramers spin degeneracy". Nature. 626 (7999): 517–522. arXiv:2308.10681. doi:10.1038/s41586-023-06907-7. ISSN 1476-4687. PMID 38356066.

[fedchenko-9] Fedchenko, Olena; Minár, Jan; Akashdeep, Akashdeep; D’Souza, Sunil Wilfred; Vasilyev, Dmitry; Tkach, Olena; Odenbreit, Lukas; Nguyen, Quynh; Kutnyakhov, Dmytro; Wind, Nils; Wenthaus, Lukas; Scholz, Markus; Rossnagel, Kai; Hoesch, Moritz; Aeschlimann, Martin (2024-02-02). "Observation of time-reversal symmetry breaking in the band structure of altermagnetic RuO 2". Science Advances. 10 (5): eadj4883. doi:10.1126/sciadv.adj4883. ISSN 2375-2548. PMC 10830110. PMID 38295181.

[scidaily-10] Arrell, Miriam (February 14, 2024). "Altermagnetism proves its place on the magnetic family tree". ScienceDaily. Retrieved 2024-02-15.

Altermagnetism information

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Altermagnetism

List of states of matter