Comment on "Topological Nodal-Net Semimetal in a Graphene Network Structure"

Tielei Song; Zhifeng Liu; Xin Cui

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arXiv · 1905.08897

Comment on "Topological Nodal-Net Semimetal in a Graphene Network Structure"

Tielei Song·Zhifeng Liu·Xin Cui

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Abstract

Recently, a distinct topological semimetal, nodal-net semimetal, has been identified by Wang et al. through ab initio calculations [Phys. Rev. Lett. 120, 026402 (2018)]. The authors claimed that a new body-centered tetragonal carbon allotrope with I4/mmm symmetry, termed bct-C40, can host this novel state exhibiting boxed-astrisk shaped nodal nets. In this Comment, we demonstrate that bct-C40 is in fact a nodal surface semimetal, the concept of which has been proposed as early as 2016 [Phys. Rev. B 93, 085427 (2016)].

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Tielei Song, Zhifeng Liu, Xin Cui. 2019-05-21. Comment on "Topological Nodal-Net Semimetal in a Graphene Network Structure". https://arxiv.org/abs/1905.08897

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