Rare-earth monopnoctides -- family of antiferromagnets hosting magnetic Fermi arcs

Abstract

Since the discovery of topological insulators a lot of research effort has been devoted to magnetic topological materials, in which non-trivial spin properties can be controlled by magnetic fields, culminating in a wealth of fundamental phenomena and possible applications. The main focus was on ferromagnetic materials that can host Weyl fermions and therefore spin textured Fermi arcs. The recent discovery of Fermi arcs and new magnetic bands splitting in antiferromagnet (AFM) NdBi has opened up new avenues for exploration. Here we show that these uncharted effects are not restricted to this specific compound, but rather emerge in CeBi, NdBi, and NdSb when they undergo paramagnetic to AFM transition. Our data show that the Fermi arcs in NdSb have 2-fold symmetry, leading to strong anisotropy that may enhance effects of spin textures on transport properties. Our findings thus demonstrate that the RBi and RSb series are materials that host magnetic Fermi arcs and may be a potential platform for modern spintronics.

arXiv comment19 pages, five figures, supplemental information

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Cited by in corpus (15)

• Complex electronic structure evolution of NdSb across the magnetic transition
• Directional effects of antiferromagnetic ordering on the electronic structure in NdSb
• Unusual surface states associated with the PT-symmetry breaking and antiferromagnetic band folding in NdSb
• Origin of the exotic electronic states in antiferromagnetic NdSb
• Unconventional Surface State Pairs in a High-Symmetry Lattice with Anti-ferromagnetic Band-folding
• Unexpected changes in the band structure within AFM1 state of CeBi
• Observation of spin splitting in the surface electronic structure of antiferromagnet NdBi
• Temperature-dependent Fermi surface probed by Shubnikov-de Haas oscillations in topological semimetal candidates DyBi and HoBi
• Complex Fermiology and Electronic Structure of Antiferromagnet EuSnP
• Non-trivial topology in rare-earth monopnictides from dimensionality reduction
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• Electronic signatures of successive itinerant, magnetic transitions in hexagonal La2Ni7
• Observation of unexpected band splitting and magnetically-induced band structure reconstruction in TbTi${}_3$Bi${}_4$
• Cubic Dirac Semimetals: General Theory and Application to Rare-Earth Magnets
• Unconventional band splitting of CeSb in the devil's staircase transition