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Highly Efficient Non-relativistic Edelstein effect in p-wave magnets

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arxiv 2411.16378 v1 pith:QPFI4VPN submitted 2024-11-25 cond-mat.mes-hall cond-mat.mtrl-sci

Atasi Chakraborty , Anna Birk Hellenes , Rodrigo Jaeschke-Ubiergo , Tomas Jungwirth , Libor Šmejkal , Jairo Sinova This is my paper · ORCID
classification cond-mat.mes-hallcond-mat.mtrl-sci
keywords nreep-waveconversionedelsteineffectmagnetssystemsachieved
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The origin and efficiency of charge-to-spin conversion, known as the Edelstein effect (EE), has been typically linked to spin-orbit coupling mechanisms, which require materials with heavy elements within a non-centrosymmetric environment. Here we demonstrate that the high efficiency of spin-charge conversion can be achieved even without spin-orbit coupling in the recently identified coplanar p-wave magnets. The non-relativistic Edelstein effect (NREE) in these magnets exhibits a distinct phenomenology compared to the relativistic EE, characterized by a strongly anisotropic response and an out-of-plane polarized spin density resulting from the spin symmetries. We illustrate the NREE through minimal tight-binding models, allowing a direct comparison to different systems. Through first-principles calculations, we further identify the p-wave candidate material CeNiAsO as a high-efficiency NREE material, revealing a 25 times larger response than the maximally achieved relativistic EE and other reported NREE in non-collinear magnetic systems with broken time-reversal symmetry. This highlights the potential for efficient spin-charge conversion in p-wave magnetic systems.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Odd-parity Magnetism Driven by Antiferromagnetic Exchange

    cond-mat.str-el 2025-01 accept novelty 7.0 of 10

    Coplanar antiferromagnetic order in non-symmorphic crystals can induce odd-parity spin splitting, nematic order, or scalar odd-parity order, with microscopic models and 67 material candidates identified.

  2. Dynamical Polarization from Hidden Spin and Orbital Textures in p-Wave Magnets

    cond-mat.mes-hall 2026-07 conditional novelty 6.0 of 10

    Optically driven p-wave magnets develop a resonantly enhanced ac spin polarization at the 2J_sd exchange gap and a rectified, polarization-controlled dc orbital polarization invisible to period-averaged treatments.

  3. Majorana flat bands and anomalous proximity effects in $p$-wave magnet--superconductor hybrid systems

    cond-mat.supr-con 2025-02 accept novelty 6.0 of 10

    A two-dimensional hybrid of an s-wave superconductor and a p-wave magnet hosts chiral-symmetry-protected flat-band Majorana bound states and a disorder-robust quantized zero-bias conductance peak.

  4. Symmetry, microscopy and spectroscopy signatures of altermagnetism

    cond-mat.mtrl-sci 2025-06 unverdicted

    A review of the symmetry, microscopic origin, and detection of altermagnetism, a collinear magnetic phase with alternating spin polarization in momentum space.

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