Floquet Analysis on an Irradiated Nodal Surface Semimetal with Non-Symmorphic Symmetry

Abstract

A nodal surface semimetal (NSSM) features symmetry enforced band crossings along a surface within the three-dimensional (3D) Brillouin zone (BZ) and a presence of a nonsymmorphic symmetry there pushes such surfaces to stick to the BZ center or boundaries. The topological robustness of the same does not always come with nonzero Berry fluxes. We consider two such nodal surfaces (NS), one with zero and another with nonzero topological charges and investigate the effect of light irradiation on them. We find that depending on the state of polarization, one can obtain additional Weyl points/ nodal surfaces in the corresponding Floquet Hamiltonians. Particularly, using a simple two band spinless/spin polarized models with no spin orbit coupling, we emphasize the low energy behavior of the continuum Hamiltonians close to the band crossings and its evolution in a Floquet system in the high frequency limit. In the Floquet system, we also find the nodal surfaces to perish or new multi Weyl points to get popped up for different polarization scenario or different NSSM Hamiltonians. Our findings open up important avenues on what out of equilibrium NSSM systems can offer in many active fields including quantum computations.

arXiv commentFinal version

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Cited by in corpus (2)

• Floquet-Engineering Weyl Points and Linked Fermi Arcs from Straight Nodal Lines
• Transport through Nodal Surface Semimetal-Superconductor junction in absence/presence of light irradiation