Spin-Polarized Antiferromagnetic Spintronics

Abstract

Spin-polarized antiferromagnets (AFMs), including altermagnets, noncollinear AFMs, and two-dimensional layer-polarized AFMs, have emerged as transformative materials for next-generation spintronic and optoelectronic technologies. These systems uniquely combine spin-polarized electronic states with vanishing net magnetization, enabling ultrafast spin dynamics, high-density integration, and robustness against stray magnetic fields. Their unconventional symmetry-breaking mechanisms-governed by crystal symmetry, chiral spin textures, or interlayer potential control-give rise to emergent phenomena previously exclusive to ferromagnets: nonrelativistic spin-momentum locking, spontaneous anomalous transport phenomena, gate-tunable magneto-optical responses, and nonrelativistic spin-polarized current. This review systematically examines the fundamental principles linking symmetry, band topology, and transport properties across these material classes, synthesizing recent breakthroughs in both theory and experiment. We further identify critical challenges in achieving room-temperature functionality, scalable Neel vector control, and coherent spin-current manipulation, while outlining pathways to harness these materials for ultra-low-power memory, spin-logic architectures, and quantum information technologies.

References in corpus (153)

• Spintronics: Fundamentals and applications
• Layer-dependent Ferromagnetism in a van der Waals Crystal down to the Monolayer Limit
• Discovery of intrinsic ferromagnetism in 2D van der Waals crystals
• Antiferromagnetic spintronics
• Gate-tunable Room-temperature Ferromagnetism in Two-dimensional Fe${}_3$GeTe${}_2$
• Antiferromagnetic spintronics
• Spin Transfer Torques
• Current-induced spin-orbit torques in ferromagnetic and antiferromagnetic systems
• Electrical Control of 2D Magnetism in Bilayer CrI3
• Intrinsic magnetic topological insulators in van der Waals layered MnBi${}_2$Te${}_4$-family materials
• First Principles Calculation of Anomalous Hall Conductivity in Ferromagnetic bcc Fe
• Crystal Hall effect in Collinear Antiferromagnets
• Large anomalous Hall effect driven by non-vanishing Berry curvature in non-collinear antiferromagnetic Mn3Ge
• Electric-field switching of two-dimensional van der Waals magnets
• Anomalous Hall effect arising from noncollinear antiferromagnetism
• Skyrmion lattice with a giant topological Hall effect in a frustrated triangular-lattice magnet
• Large anomalous Nernst effect at room temperature in a chiral antiferromagnet
• Room-temperature antiferromagnetic memory resistor
• Observation of the Anomalous Hall Effect in a Collinear Antiferromagnet
• Evidence for Magnetic Weyl Fermions in a Correlated Metal
• Berry phase effect in anomalous thermoelectric transport
• Direct observation of van der Waals stacking dependent interlayer magnetism
• Giant anomalous Nernst effect and quantum-critical scaling in a ferromagnetic semimetal
• Giant momentum-dependent spin splitting in centrosymmetric low Z antiferromagnets
• Efficient Electrical Spin-Splitter Based on Non-Relativistic Collinear Antiferromagnetism
• Momentum-Dependent Spin Splitting by Collinear Antiferromagnetic Ordering
• Multifunctional Antiferromagnetic Materials with Giant Piezomagnetism and Noncollinear Spin Current
• Observation of spin splitting torque in a collinear antiferromagnet RuO2
• Broken Kramers' degeneracy in altermagnetic MnTe
• Large magneto-optical Kerr effect and imaging of magnetic octupole domains in an antiferromagnetic metal
• Unusual Hall Effect Anomaly in MnSi Under Pressure
• Spin current generation in organic antiferromagnets
• Tilted spin current generated by the collinear antiferromagnet RuO2
• Altermagnetism: Exploring New Frontiers in Magnetism and Spintronics
• Direct observation of altermagnetic band splitting in CrSb thin films
• Spontaneous anomalous Hall effect arising from an unconventional compensated magnetic phase in a semiconductor
• Topological Weyl semimetals in the chiral antiferromagnetic materials Mn3Ge and Mn3Sn
• Non-collinear Antiferromagnets and the Anomalous Hall Effect
• Atomically Thin CrCl3: An in-Plane Layered Antiferromagnetic Insulator
• Observation of spin-splitter torque in collinear antiferromagnetic RuO${}_2$
• Giant Anomalous Hall Effect in the Chiral Antiferromagnet Mn3Ge
• Prediction of unconventional magnetism in doped FeSb2
• Layer Hall effect in a 2D topological Axion antiferromagnet
• Strong, anisotropic anomalous Hall effect and spin Hall effect in chiral antiferromagnetic compounds Mn${}_{3}X$ ($X$ = Ge, Sn, Ga, Ir, Rh and Pt)
• Spin-polarized current in non-collinear antiferromagnets
• Quantum metric nonlinear Hall effect in a topological antiferromagnetic heterostructure
• Anomalous Nernst and Righi-Leduc effects in Mn${}_3$Sn: Berry curvature and entropy flow
• Quantum metric-induced nonlinear transport in a topological antiferromagnet
• Dirac Fermions in Antiferromagnetic Semimetal
• Spin chirality on a two-dimensional frustrated lattice
• Observation of Giant Band Splitting in Altermagnetic MnTe
• Prediction of low-Z collinear and noncollinear antiferromagnetic compounds having momentum-dependent spin splitting even without spin-orbit coupling
• Observation of plaid-like spin splitting in a noncoplanar antiferromagnet
• Crystal Thermal Transport in Altermagnetic RuO2
• Large band-splitting in $g$-wave type altermagnet CrSb
• Energy Magnetization and Thermal Hall Effect
• Discovery of a metallic room-temperature d-wave altermagnet KV2Se2O
• Intrinsic Second-Order Anomalous Hall Effect and Its Application in Compensated Antiferromagnets
• Antiferroelectric Altermagnets: Antiferroelectricity Alters Magnets
• Electric control of Dirac quasiparticles by spin-orbit torque in an antiferromagnet
• Ferroelectric switchable altermagnetism
• Giant topological Hall effect in correlated oxide thin films
• Nonmagnetic Ground State in RuO${}_2$ Revealed by Muon Spin Rotation
• Twisted Magnetic Van der Waals Bilayers: An Ideal Platform for Altermagnetism
• Three-dimensional mapping of the altermagnetic spin splitting in CrSb
• Gate-controllable magneto-optic Kerr effect in layered collinear antiferromagnets
• Current-Driven Dynamics of Skyrmions Stabilized in MnSi Nanowires Revealed by Topological Hall Effect
• X-ray Magnetic Circular Dichroism in Altermagnetic $\alpha$-MnTe
• Large magneto-optical Kerr effect in noncollinear antiferromagnets Mn${}_{3}X$ ($X$ = Rh, Ir, or Pt)
• Predictable gate-field control of spin in altermagnets with spin-layer coupling
• Crystal-symmetry-paired spin-valley locking in a layered room-temperature antiferromagnet
• Anomalous Hall Effect in Thin Film of the Weyl Antiferromagnet Mn${}_3$Sn
• Spin-split collinear antiferromagnets: a large-scale ab-initio study
• Room-Temperature Terahertz Anomalous Hall Effect in Weyl Antiferromagnet Mn${}_3$Sn Thin Films
• Berry curvature unravelled by the Nernst effect in Mn${}_3$Ge
• Perovskite as a spin current generator
• Real-Space and Reciprocal-Space Berry Phases in the Hall Effect of Mn${}_{1-\mathrm{x}}$Fe${}_{\mathrm{x}}$Si
• Dimensional Crossover Induced Topological Hall Effect in a Magnetic Topological Insulator
• Spontaneous topological Hall effect induced by non-coplanar antiferromagnetic order in intercalated van der Waals materials
• Spin chirality fluctuation in two-dimensional ferromagnets with perpendicular anisotropy
• Tunneling Magnetoresistance in Noncollinear Antiferromagnetic Tunnel Junctions
• Néel Spin Currents in Antiferromagnets
• Anomalous Hall effect in $\kappa$-type organic antiferromagnets
• Nonlinear anomalous Hall effect for Néel vector detection
• Two-dimensional altermagnets from high throughput computational screening: symmetry requirements, chiral magnons and spin-orbit effects
• Spin-order dependent anomalous Hall effect and magneto-optical effect in noncollinear antiferromagnets Mn${}_{3}X$N ($X$ = Ga, Zn, Ag, and Ni)
• Topological magneto-optical effects and their quantization in noncoplanar antiferromagnets
• Concurrence of Quantum Anomalous Hall and Topological Hall Effects in Magnetic Topological Insulator Sandwich Heterostructures
• Electrically Controllable Crystal Chirality Magneto-Optical Effects in Collinear Antiferromagnets
• Crystal Hall and crystal magneto-optical effect in thin films of SrRuO${}_3$
• Large anomalous Nernst and spin Nernst effects in noncollinear antiferromagnets Mn${}_{3}X$ ($X$ = Sn, Ge, Ga)
• Piezomagnetic switching of anomalous Hall effect in an antiferromagnet at room temperature
• Robust magnetoelectric coupling in altermagnetic-ferroelectric type-III multiferroics
• Finite-temperature violation of the anomalous transverse Wiedemann-Franz law
• Anisotropy of the anomalous Hall effect in the altermagnet candidate Mn${}_5$Si${}_3$ films
• Description of two-dimensional altermagnetism: Categorization using spin group theory
• Two-dimensional fully-compensated Ferrimagnetism
• Anomalous Hall Conductivity of a Non-Collinear Magnetic Antiperovskite
• Intrinsic Layer-Polarized Anomalous Hall Effect in Bilayer MnBi2Te4
• Antiferromagnetic Tunnel Junctions for Spintronics
• Layer Hall effect induced by hidden Berry curvature in antiferromagnetic insulators
• Quantum topological Hall effect and noncoplanar antiferromagnetism in K${}_{0.5}$RhO${}_2$
• Field-linear anomalous Hall effect and Berry curvature induced by spin chirality in the kagome antiferromagnet Mn3Sn
• Noncollinear Spintronics and Electric-Field Control: A Review
• Non-relativistic spin splitting in compensated magnets that are not altermagnets
• Tunneling magnetoresistance in magnetic tunnel junctions with a single ferromagnetic electrode
• AI-accelerated Discovery of Altermagnetic Materials
• Topology analysis for anomalous Hall effect in the non-collinear antiferromagnetic states of Mn${}_{3}A$N ($A$ = Ni, Cu, Zn, Ga, Ge, Pd, In, Sn, Ir, Pt)
• Integration of the Noncollinear Antiferromagnetic Metal Mn3Sn onto Ferroelectric Oxides for Electric-Field Control
• Stacking-dependent ferroicity of reversed bilayer: altermagnetism or ferroelectricity
• Switchable anomalous Hall effects in polar-stacked 2D antiferromagnet MnBi2Te4
• Comparing the anomalous Hall effect and the magneto-optical Kerr effect through antiferromagnetic phase transitions in Mn${}_3$Sn
• Tunable valley and spin splittings in $\mathrm{VS}{\mathrm{i}}_2{\mathrm{N}}_4$ bilayer
• Prototypical topological orbital ferromagnet $\gamma$-FeMn
• Intrinsic Nonlinear Hall Detection of the Néel Vector for Two-Dimensional Antiferromagnetic Spintronics
• Giant Piezospintronic Effect in a Noncollinear Antiferromagnetic Metal
• Temperature Dependence of Relativistic Valence Band Splitting Induced by an Altermagnetic Phase Transition
• Anomalous Hall effect in antiferromagnetic perovskites
• Interplay between altermagnetism and nonsymmorphic symmetries generating large anomalous Hall conductivity by semi-Dirac points induced anticrossings
• Switching of a large anomalous Hall effect between metamagnetic phases of a non-collinear antiferromagnet
• Anomalous Hall effect in non-collinear antiferromagnetic antiperovskite Mn${}_3$Ni${}_{1-x}$Cu${}_x$N
• Coulomb Drag in Altermagnets
• Giant Anomalous Nernst Effect in Noncollinear Antiferromagnetic Mn-based Antiperovskite Nitrides
• All-antiferromagnetic electrically controlled memory on silicon featuring large tunneling magnetoresistance
• Switching on and off the spin polarization of the conduction band in antiferromagnetic bilayer transistors
• Magneto-optical Kerr effect in ferroelectric antiferromagnetic two-dimensional heterostructures
• Spin-Orientation Dependent Topological States in Two-Dimensional Antiferromagnetic NiTl${}_2$S${}_4$ Monolayers
• Large anomalous Nernst and inverse spin-Hall effects in epitaxial thin films of Kagome semimetal Mn${}_3$Ge
• Strain-induced valley polarization, topological states, and piezomagnetism in two-dimensional altermagnetic V${}_2$Te${}_2$O, V${}_2$STeO, V${}_2$SSeO, and V${}_2$S${}_2$O
• Large intrinsic anomalous Hall effect in both Nb${}_2$FeB${}_2$ and Ta${}_2$FeB${}_2$ with collinear antiferromagnetism
• Interfacial crystal Hall effect reversible by ferroelectric polarization
• Crystal valley Hall effect
• Non-Collinear Spin Current for Switching of Chiral Magnetic Textures
• Chern-insulator phase in antiferromagnets
• Nearly perfect spin polarization of noncollinear antiferromagnets
• Ab initio prediction of anomalous Hall effect in antiferromagnetic CaCrO${}_3$
• Spin and Orbital Magnetism by Light in Rutile Altermagnets
• Pressure tuning of the anomalous Hall effect in the chiral antiferromagnet Mn3Ge
• Magneto-optic and transverse transport properties of non-collinear antiferromagnets
• Identifying the octupole Antiferromagnetic domain orientation in Mn${}_3$NiN by scanning Anomalous Nernst Effect microscopy
• Spin-Orbit Torque Switching of Noncollinear Antiferromagnetic Antiperovskite Manganese Nitride Mn${}_3$GaN
• Pushing an Altermagnet to the Ultimate 2D Limit: Evidence of Symmetry Breaking in Monolayers of GdAlSi
• Recent progress in antiferromagnetic dynamics
• Layer Control of Magneto-Optical Effects and Their Quantization in Spin-Valley Splitting Antiferromagnets
• Anomalous Nernst effect in Mn${}_3$NiN thin films
• Anomalous Magneto Optic Effects from an Antiferromagnet Topological-Insulator Heterostructure
• Origin of Anomalous Hall effect in Cr-doped RuO${}_2$
• Activating magnetoelectric optical properties by twisting antiferromagnetic bilayers
• Quantum anomalous Hall effects controlled by chiral domain walls
• Electrical-controllable antiferromagnet-based tunnel junction
• Electrical reversal of the sign for magnon thermal Hall coefficient in a van der Waals bilayer antiferromagnet
• Second-order topological magneto-optical effects in noncoplanar antiferromagnets
• Epitaxial growth and orientation-dependent anomalous Hall effect of noncollinear antiferromagnetic Mn${}_3$Ni${}_{0.35}$Cu${}_{0.65}$N films

Cited by in corpus (8)

• Two-dimensional Dual-Switchable Ferroelectric Altermagnets: Altering Electrons and Magnons
• Emergent Multiferroic Altermagnets and Spin Control via Noncollinear Molecular Polarization
• Altermagnetism, ARPES, symmetry, non-relativistic band splitting
• Magnetic-Field and Strain Engineering of Modulated Transverse Transport in Altermagnetic Topological Materials
• Anomalous Hall effect and rich magnetic phase diagram of Mn${}_{100-x}$Rh${}_x$ epitaxial films
• Effect of symmetry breaking on altermagnetism in CrSb and Formation of fragmented nodal curves
• Optical signatures of bulk g-wave altermagnetism in MnTe
• Strain-Induced Half-Metallicity and Giant Wiedemann-Franz Violation in Monolayer NiI${}_2$