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Showing 1–14 of 14 results
Advanced filters: Author: Libor Šmejkal Clear advanced filters

  • The symmetry, microscopy and spectroscopy signatures of altermagnetism are reviewed, and compared with traditional ferromagnetism and Néel antiferromagnetism, and magnetic phases with symmetry-protected compensated non-collinear spin orders.

    • Tomas Jungwirth
    • Jairo Sinova
    • Libor Šmejkal
    Reviews
    Nature
    Volume: 649, P: 837-847

  • By combining vector magnetometry and magneto-transport measurements of epitaxial films with different crystallographic orientations, an anomalous Hall effect can be measured in collinear altermagnetic ruthenium dioxide with an anomalous Hall conductivity exceeding 1,000 Ω–1 cm–1.

    • Zexin Feng
    • Xiaorong Zhou
    • Zhiqi Liu
    Research
    Nature Electronics
    Volume: 5, P: 735-743

  • Charge-to-spin conversion, where a charge current generates a spin-current, is critical for spintronic devices. Usually efficient charge-to-spin conversion relies on heavy metals with large spin-orbit interactions, but here, Chakraborty et al show that high efficiency charge-to-spin conversion can be achieved without spin-orbit coupling using recently identified p-wave magnets.

    • Atasi Chakraborty
    • Anna Birk Hellenes
    • Jairo Sinova
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-8

  • Altermagnets, unlike their conventional collinear antiferromagnetic counterparts, allow for an anomalous Nernst response despite their collinear compensated magnetic ordering. Here, Badura et al find such an anomalous Nernst effect at zero magnetic field in the altermagnetic candidate, Mn5Si3.

    • Antonín Badura
    • Warlley H. Campos
    • Helena Reichlova
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-11

  • The classification of magnets now includes altermagnets which possess opposite-spin sublattices connected by rotation and share some features with ferro- and antiferromagnets. Here the authors report the anomalous Hall effect in Mn5Si3 and interpret the results in terms of a d-wave altermagnetic phase.

    • Helena Reichlova
    • Rafael Lopes Seeger
    • Libor Šmejkal
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-10

  • Recent work has demonstrated the potential of polycrystalIine antiferromagnetic materials for spintronics. Here the authors report evidence of magnetic phase transitions in a polycrystalline non-collinear antiferromagnet, which are explained by a phenomenological model with topological orbital momenta.

    • Sihao Deng
    • Olena Gomonay
    • Christoph Sürgers
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-8

  • The fundamental hallmark of altermagnetism lies in the spin splitting of electronic valence bands. Here, the authors observe splitting in metallic CrSb, revealing an exceptionally large value and energetic placement just below the Fermi energy.

    • Sonka Reimers
    • Lukas Odenbreit
    • Martin Jourdan
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-7

  • Mn5Si3 is an interesting metallic compound that exhibits several antiferromagnetic phases with different collinear and noncollinear arrangements of magnetic moments. Here, anomalous Nernst effect measurements across the magnetic transitions are reported, indicating a symmetry-breaking modification of the magnetic state at low temperatures, in contrast to previous symmetry analysis.

    • Christoph Sürgers
    • Gerda Fischer
    • Wolfgang Wernsdorfer
    ResearchOpen Access
    Communications Materials
    Volume: 5, P: 1-9

  • Topological states of various kinds may find application in spintronic devices. The authors review recent progress in this area.

    • Libor Šmejkal
    • Yuriy Mokrousov
    • Allan H. MacDonald
    Reviews
    Nature Physics
    Volume: 14, P: 242-251

  • Only in recent years has the Hall effect been predicted and observed in materials with antiferromagnetic order. This Review systematically organizes the current understanding of anomalous antiferromagnetic materials that generate a Hall effect, discussing these systems in the broad context of spintronics, topological condensed matter and multipole magnetism.

    • Libor Šmejkal
    • Allan H. MacDonald
    • Tomas Jungwirth
    Reviews
    Nature Reviews Materials
    Volume: 7, P: 482-496