Ruddlesden-Popper and perovskite phases as a material platform for altermagnetism

Abstract

The subclass of collinear antiferromagnets where spin Kramers degeneracy is broken -- resulting in ferromagnetic-like properties -- offers exciting new opportunities in magnetism and hence motivates the reasoned expansion of the material base for these so-called altermagnets. Here, we show that Ruddlesden-Popper and perovskite phases are generic hosts for altermagnetic behavior. Using first-principles calculations, we demonstrate altermagnetism in prototypical nickel-based systems such as La${}_2$NiO${}_4$ and identify additional candidates, including the superconducting La${}_3$Ni${}_3$O${}_7$ and the multiferroic BiFeO${}_3$. These materials span insulating, semiconducting, and metallic conduction types, with computed nonrelativistic spin splittings reaching up to 250~meV. Our analysis also reveals the presence of accidental nodes and distinct topologies in the spin-momentum texture at the Brillouin-zone boundary, suggesting a refined classification for altermagnetic materials beyond the $d$-wave or higher even-parity wave classes. In addition, we address formal inconsistencies in the traditional classification of magnetically ordered systems, proposing resolutions grounded in the altermagnetic framework, and point out the potential for altermagnetic behavior in systems beyond collinear antiferromagnets with perfectly compensated magnetization, broadening the scope for future exploration.

v1: 7 pages, 5 figures, 1 table; v2: 8 pages, 5 figures, 1 table, additional references

References in corpus (22)

• Altermagnetism: spin-momentum locked phase protected by non-relativistic symmetries
• Superconductivity near 80 Kelvin in single crystals of La3Ni2O7 under pressure
• Observation of the Anomalous Hall Effect in a Collinear Antiferromagnet
• Altermagnetism: Exploring New Frontiers in Magnetism and Spintronics
• Antiferromagnetism in RuO${}_2$ as $d$-wave Pomeranchuk instability
• Observation of Giant Band Splitting in Altermagnetic MnTe
• Twisted Magnetic Van der Waals Bilayers: An Ideal Platform for Altermagnetism
• Signature of superconductivity in pressurized La${}_4$Ni${}_3$O${}_{10}$
• Spin-split collinear antiferromagnets: a large-scale ab-initio study
• Topological transition from nodal to nodeless Zeeman splitting in altermagnets
• Crystal Hall and crystal magneto-optical effect in thin films of SrRuO${}_3$
• Room temperature two-dimensional antiferromagnetic Weyl semimetal CrO with giant spin-splitting and spin-momentum locked transport
• Interplay of altermagnetism and weak ferromagnetism in two-dimensional RuF${}_4$
• Nickelate superconductors: an ongoing dialog between theory and experiments
• Orbital-selective altermagnetism and correlation-enhanced spin-splitting in transition metal oxides
• Geometric effects in the infinite-layer nickelates
• Dynamical structural instability and its implication on the physical properties of infinite-layer nickelates
• Single-layer T'-type nickelates: Ni${}^{1+}$ is Ni${}^{1+}$
• Electronic structure and magnetic properties of La${}_3$Ni${}_2$O${}_7$ under pressure: active role of the Ni-$d_{x^2-y^2}$ orbitals
• Altermagnetic ferroelectric LiFe2F6 and spin-triplet excitonic insulator phase
• Uncovering hidden spin polarization of energy bands in antiferromagnets
• Extremely strong spin-orbit coupling effect in light-element altermagnetic materials

Cited by in corpus (11)

• G-type Antiferromagnetic BiFeO${}_3$ is a Multiferroic $g$-wave Altermagnet
• Two-dimensional Dual-Switchable Ferroelectric Altermagnets: Altering Electrons and Magnons
• Hybrid d/p-wave altermagnetism in Ca${}_3$Ru${}_2$O${}_7$ and strain-controlled spin splitting
• (Anti-)Altermagnetism from Orbital Ordering in the Ruddlesden-Popper Chromates Sr${}_{n+1}$Cr${}_n$O${}_{3n+1}$
• Lithium and Vanadium Intercalation into Bilayer V2Se2O: Ferrimagnetic-Ferroelastic Multiferroics and Anomalous and Spin Transport
• Noncollinear Magnetic Multipoles in Collinear Altermagnets
• Design and theory of switchable linear magnetoelectricity by ferroelectricity in Type-I multiferroics
• Impact of strong electronic correlations on altermagnets: the case of NiS2
• Pressure and doping effects on the electronic structure and magnetism of the single-layer nickelate La${}_2$NiO${}_4$
• Staggered Dzyaloshinskii-Moriya and canting angle in centrosymmetric altermagnetic and ferromagnetic phases: influence on the anomalous Hall effect and Weyl points
• Altermagnetism from the viewpoint of chemistry