Phononic Weyl Nodal Straight Lines in High-Temperature Superconductor MgB${}_2$

Qing Xie, Jiangxu Li, Min Liu +4

Based on first-principles calculations, we predict that the superconducting MgB${}_2$ with a AlB${}_2$-type centrosymmetric lattice host the so-called phononic topological Weyl nodal l…