Transverse Spin current at the normal/p-wave magnet junctions

Abstract

We investigate the transmission properties of a junction between a normal metal and a p-wave magnet in the ballistic regime. We introduce a two-dimensional square lattice that confirms the p-wave magnet criteria. The $\alpha$-vector of the magnet breaks the inversion symmetry of the parabolic dispersion, shifting them in $k$-space. These shifts alter the propagation direction of fermions passing through the junction interface. Depending on spin orientation, the transmission process exhibits anisotropic, angle-dependent behavior. We also demonstrate a mirror symmetry between fermions with opposite spin directions, leading to the emergence of a transverse spin current that flows parallel to the interface. Additionally, we show that the $\alpha$-vector acts as a source for the dynamics of the spin-density wave and observe the formation of an indirect gap in the conductance of the junction. Our findings highlight the unique transmission characteristics and spin transport phenomena in normal metal/p-wave magnet junctions, paving the way for potential applications in spintronic devices.

9 pages, 7 Figures

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Cited by in corpus (10)

• Superconducting phenomena in systems with unconventional magnets
• Metallic $p$-wave magnet with commensurate spin helix
• Coexistence of $p$-wave magnetism and superconductivity
• Crossed Andreev reflection in collinear $p$-wave magnet/triplet superconductor junctions
• Andreev bound states and supercurrent in an unconventional superconductor-altermagnetic Josephson junction
• Néel vector controlled exceptional contours in $p$-wave magnet-ferromagnet junctions
• Proximity effect and p-wave superconductivity in s-wave superconductor/helimagnet heterostructures
• Tunneling spin Hall effect induced by unconventional $p$-wave magnetism
• Orientation dependent anomalous Hall and spin Hall currents at junctions of altermagnets with $p$-wave magnets
• Time reversal reserved spin valve and spin transistor based on unconventional $p$-wave magnets