295 citations · 489 across the 2 of their papers we have counts for
5 papers
Nodal-knot semimetals
Ren Bi, Zhongbo Yan, Ling Lu +1
Topological nodal-line semimetals are characterized by one-dimensional lines of band crossing in the Brillouin zone. In contrast to nodal points, nodal lines can be in topologicall…
Nodal-link semimetals
Zhongbo Yan, Ren Bi, Huitao Shen +3
In topological semimetals, the valence band and conduction band meet at zero-dimensional nodal points or one-dimensional nodal rings, which are protected by band topology and symme…
Majorana Zero Modes Protected by Hopf Invariant in Topologically Trivial Superconductors
Zhongbo Yan, Ren Bi, Zhong Wang
Majorana zero modes are usually attributed to topological superconductors. We study a class of two-dimensional topologically trivial superconductors without chiral edge modes, whic…
Topological defects in Floquet systems: Anomalous chiral modes and topological invariant
Ren Bi, Zhongbo Yan, Ling Lu +1
Backscattering-immune chiral modes arise along certain line defects in three-dimensional materials. In this paper, we study Floquet chiral modes along Floquet topological defects,…
Unidirectional Transport in Electronic and Photonic Weyl Materials by Dirac Mass Engineering
Ren Bi, Zhong Wang
Unidirectional transports have been observed in two-dimensional systems, however, so far they have not been experimentally observed in three-dimensional bulk materials. In this the…