Relativistic Spin-momentum locking in altermagnets

Abstract

Spin-momentum locking in altermagnets has been deeply explored in the non-relativistic limit. Including spin-orbit coupling, altermagnets exhibit antisymmetric exchange interactions, leading to spin cantings. Therefore, the spin-momentum locking differs among the three spin components Sx, Sy, and Sz, forming the relativistic spin-momentum locking. We consider orthorhombic YVO3 and hexagonal MnTe. For YVO3, the relativistic locking comprises s-, dxy -, and dxz-wave. In MnTe, the dominant component Sy of MnTe inherits the polarized charge distribution and the non-relativistic spin-momentum locking bulk g-wave, but the breaking of the C6z rotational symmetry by the Neel vector lowers the symmetry from g-wave to d-wave. The relativistic spin-momentum locking for MnTe is composed of dxz-, dyz- and s-wave. Despite small magnitudes in real space, the canted spin components contribute significant spectral weight in k-space, impacting k-space properties such as the spin-Hall conductivity.

7 pages, 4 figures

References in corpus (42)

• Momentum-Dependent Spin Splitting by Collinear Antiferromagnetic Ordering
• Giant and tunneling magnetoresistance effects from anisotropic and valley-dependent spin-momentum interactions in antiferromagnets
• Direct observation of altermagnetic band splitting in CrSb thin films
• Spontaneous anomalous Hall effect arising from an unconventional compensated magnetic phase in a semiconductor
• Bottom-up design of spin-split and reshaped electronic band structures in spin-orbit-coupling free antiferromagnets: Procedure on the basis of augmented multipoles
• Classification of atomic-scale multipoles under crystallographic point groups and application to linear response tensors
• Large band-splitting in $g$-wave type altermagnet CrSb
• dc Josephson Effect in Altermagnets
• Landau Theory of Altermagnetism
• Magnetic octupoles as the order parameter for unconventional antiferromagnetism
• Altermagnetism with Non-collinear Spins
• Group-theoretical classification of multipole order: emergent responses and candidate materials
• Quantum geometry induced nonlinear transport in altermagnets
• Magnetic anisotropy in antiferromagnetic hexagonal MnTe
• Non collinear magnetism and single ion anisotropy in multiferroic perovskites
• Multipole classification in 122 magnetic point groups for unified understanding of multiferroic responses and transport phenomena
• Mirror Chern Bands and Weyl Nodal Loops in Altermagnets
• Coexistence of Anomalous Hall Effect and Weak Net Magnetization in Collinear Antiferromagnet MnTe
• Unified description of electronic orderings and cross correlations by complete multipole representation
• Topological Weyl Altermagnetism in CrSb
• Structural, electronic, and magneto-optical properties of YVO${}_3$
• Spontaneous Anomalous Hall Effect in Two-Dimensional Altermagnets
• Altermagnetic surface states: towards the observation and utilization of altermagnetism in thin films, interfaces and topological materials
• Orbital-selective altermagnetism and correlation-enhanced spin-splitting in transition metal oxides
• Wurtzite vs rock-salt MnSe epitaxy: electronic and altermagnetic properties
• Staggered Dzyaloshinskii-Moriya inducing weak ferromagnetism in centrosymmetric altermagnets and weak ferrimagnetism in noncentrosymmetric altermagnets
• Sensitivity of the MnTe valence band to orientation of magnetic moments
• Collective orbital excitations in orbitally ordered YVO3 and HoVO3
• Elasto-Hall conductivity and the anomalous Hall effect in altermagnets
• Quasi-symmetry Constrained Spin Ferromagnetism in Altermagnets
• Hybrid d/p-wave altermagnetism in Ca${}_3$Ru${}_2$O${}_7$ and strain-controlled spin splitting
• Surface-symmetry-driven Dzyaloshinskii--Moriya interaction and canted ferrimagnetism in collinear magnetoelectric antiferromagnet Cr${}_2$O${}_3$
• Strain controlled g- to d-wave transition in altermagnetic CrSb
• Anomalous-Hall Neel textures in altermagnetic materials
• Antiferromagnetic resonance in $\alpha$-MnTe
• Conditions for orbital selective altermagnetism in Sr${}_2$RuO${}_4$: tight binding model, similarities with cuprates and implications on superconductivity
• Persistent spin textures, altermagnetism and charge-to-spin conversion in metallic chiral crystals TM${}_3$X${}_6$
• Tunability of the magnetic properties in Ni intercalated transition metal dichalcogenide NbSe${}_2$
• Altermagnetic polarons: the fate of alter magnetic band splittings at strong coupling
• Robust spin splitting and fermiology in a layered altermagnet
• Discovery of a large magnetic nonlinear Hall effect in an altermagnet
• Magnetic Octupole Hall Effect in d-Wave Altermagnets

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• Quantum anomalous Hall conductivity in altermagnets under applied magnetic field
• Relativistic spin-momentum locking in ferromagnets
• 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