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Showing 1–3 of 3 results
Advanced filters: Author: M. Krivenkov Clear advanced filters

  • In all experimentally observed Weyl semimetals so far, the Weyl points always appear in pairs in the momentum space. Here, the authors report one unpaired Weyl point without surface Fermi arc emerging at the center of the Brillouin zone, which is surrounded by charged Weyl nodal walls in PtGa.

    • J.-Z. Ma
    • Q.-S. Wu
    • M. Shi
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-8

  • There have been recent studies reporting that Mn-doped MAPBI3 houses a ferromagnetic phase mediated by a double exchange mechanism. Here, however, using X-ray magnetic circular dichroism and magnetic susceptibility measurements, the authors uncover contradicting experimental evidence to indicate an absence of magnetic ordering in this material, suggesting that our understanding of Mn-doped lead halide perovskites may need reassessing.

    • Maryam Sajedi
    • Chen Luo
    • Oliver Rader
    ResearchOpen Access
    Communications Physics
    Volume: 6, P: 1-8