Nodal-link semimetals
Zhongbo Yan, Ren Bi, Huitao Shen, Ling Lu, Shou-Cheng Zhang, Zhong, Wang
TL;DR
This paper introduces nodal-link semimetals with linked nodal rings in the Brillouin zone, providing a general construction method and exploring their unique Landau level and Floquet properties.
Contribution
It presents a novel class of topological semimetals with linked nodal rings and a general Hopf map-based model construction approach.
Findings
Linked nodal rings affect Landau levels.
Nodal linking influences Floquet properties.
Provides a general recipe for model construction.
Abstract
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 symmetries. In this Rapid Communication, we introduce "nodal-link semimetals", which host linked nodal rings in the Brillouin zone. We put forward a general recipe based on the Hopf map for constructing models of nodal-link semimetal. The consequences of nodal ring linking in the Landau levels and Floquet properties are investigated.
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Taxonomy
TopicsGas Sensing Nanomaterials and Sensors · 2D Materials and Applications · Advanced Semiconductor Detectors and Materials