Two-dimensional Peierls instability via zone-boundary Dirac line nodes in layered perovskite oxides
Two-dimensional Peierls instability via zone-boundary Dirac line nodes in layered perovskite oxides
Peierls instability is a ubiquitous mechanism originally suggested in one-dimensional half-filled lattices. Here, the authors show that two-dimensional Peierls instability can be realized in a class of perovskite oxides. The central role is played by the zone-boundary Dirac line node, protected by two orthogonal glide mirrors induced by the rotation …