Antiferromagnetic topological nodal line semimetals

Article

关键词: DIRAC SEMIMETAL;    FERMI ARCS;    INSULATORS;    DISCOVERY;    METALS;   

DOI  :  10.1103/PhysRevB.96.081107

来源: SCIE

【 摘 要 】

We study three-dimensional nodal line semimetals (NLSMs) with magnetic ordering and strong spin-orbit interaction. Two distinct classes of magnetic NLSMs are proposed. The first class is band-inversion NLSM where the accidental line node is induced by band inversion and locally protected by glide mirror plane and the combined time-reversal and inversion symmetries. This can be viewed as a trivial stacking of the two-dimensional antiferromagnetic Dirac semimetals. The second class is essential NLSM where the nodal features are filling enforced by specific magnetic symmetry group. We further provide two concrete tight-binding models for magnetic NLSMs which belong to these two different classes, respectively. We conclude with a brief discussion on the possible material venues and the experimental implications for such phases.

【 授权许可】

Free