Strain controlled g- to d-wave transition in altermagnetic CrSb

Abstract

The possibility of a strain-induced transformation from $g$-wave to $d$-wave altermagnetism was recently recently proposed for MnTe using a $k\cdot p$ perturbative model. In this work, we demonstrate such a transition in CrSb for a wider array of strains, using a combination of a minimal model and first-principles calculations. Starting from a symmetry perspective, we analyze the spin elastoconductivity tensor, and determine the strain types which allow for a change in the altermagnetic symmetry. We obtain three strain directions, which allow for a $d$-wave type splitting, and one in which a net magnetic moment emerges. Using first-principles calculations in the absence of spin-orbit coupling (SOC), we confirm these symmetry predictions. Furthermore, these results do not alter qualitatively in the presence of SOC. Finally, we reveal that the resulting spin currents give rise to a spin-splitter effect of up to 5\% under realistic strains of 1\%, confirming strain as a powerful tool for tuning altermagnetic properties.

References in corpus (40)

• WannierTools: An open-source software package for novel topological materials
• Maximally-localized Wannier functions for entangled energy bands
• Altermagnetism: spin-momentum locked phase protected by non-relativistic symmetries
• Crystal Hall effect in Collinear Antiferromagnets
• Observation of the Anomalous Hall Effect in a Collinear Antiferromagnet
• Efficient Electrical Spin-Splitter Based on Non-Relativistic Collinear Antiferromagnetism
• Observation of spin splitting torque in a collinear antiferromagnet RuO2
• Broken Kramers' degeneracy in altermagnetic MnTe
• Giant and tunneling magnetoresistance effects from anisotropic and valley-dependent spin-momentum interactions in antiferromagnets
• 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
• Observation of spin-splitter torque in collinear antiferromagnetic RuO${}_2$
• PyProcar: A Python library for electronic structure pre/post-processing
• Prediction of unconventional magnetism in doped FeSb2
• Antiferromagnetism in RuO${}_2$ as $d$-wave Pomeranchuk instability
• Observation of Giant Band Splitting in Altermagnetic MnTe
• Itinerant Antiferromagnetism in RuO${}_2$
• Large band-splitting in $g$-wave type altermagnet CrSb
• Symmetry-imposed shape of linear response tensors
• Discovery of a metallic room-temperature d-wave altermagnet KV2Se2O
• Anomalous Antiferromagnetism in Metallic RuO${}_2$ Determined by Resonant X-ray Scattering
• High performance Wannier interpolation of Berry curvature and related quantities: WannierBerri code
• Nonmagnetic Ground State in RuO${}_2$ Revealed by Muon Spin Rotation
• Three-dimensional mapping of the altermagnetic spin splitting in CrSb
• X-ray Magnetic Circular Dichroism in Altermagnetic $\alpha$-MnTe
• Magnetic octupoles as the order parameter for unconventional antiferromagnetism
• Crystal-symmetry-paired spin-valley locking in a layered room-temperature antiferromagnet
• Topological transition from nodal to nodeless Zeeman splitting in altermagnets
• Fragility of the magnetic order in the prototypical altermagnet RuO${}_2$
• Observation of Spin Splitting in Room-Temperature Metallic Antiferromagnet CrSb
• Crystal Hall and crystal magneto-optical effect in thin films of SrRuO${}_3$
• Topological Weyl Altermagnetism in CrSb
• Altermagnetism in the layered intercalated transition metal dichalcogenide CoNb${}_4$Se${}_8$
• Giant strain-induced spin splitting effect in MnTe, a $g$-wave altermagnetic semiconductor
• Fermi-liquid behavior of non-altermagnetic RuO${}_2$
• Magnetic properties of ruthenium dioxide (RuO2) and charge-magnetic interference in Bragg diffraction of circularly polarized x-rays
• Spontaneous Crystal Thermal Hall Effect in Insulating Altermagnets
• Strain-induced nonrelativistic altermagnetic spin splitting effect

Cited by in corpus (7)

• Tuning of altermagnetism by strain
• Electric and spin current vortices in altermagnets
• Relativistic Spin-momentum locking in altermagnets
• Tuning spin currents in collinear antiferromagnets and altermagnets
• Electric field controlled second-order anomalous Hall effect in altermagnets
• Altermagnetism from the viewpoint of chemistry
• Surface acoustic wave driven acoustic spin splitter in d-wave altermagnetic thin films