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arXiv · 2202.03963

Topological bands in the PdSe$_2$ pentagonal monolayer

Sergio Bravo·M. Pacheco·J. D. Correa·Leonor Chico
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Abstract

The electronic structure of monolayer pentagonal palladium diselenide (PdSe2) is analyzed from the topological band theory perspective. Employing first-principles calculations, effective models and symmetry indicators, we find that the low-lying conduction bands are topologically nontrivial, protected by time reversal and crystalline symmetries. Numerical evidence supporting the nontrivial character of the bands is presented. Furthermore, we obtain a relevant physical response from the topological viewpoint, such as the spin Hall conductivity.

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Sergio Bravo, M. Pacheco, J. D. Correa, Leonor Chico. 2022-02-08. Topological bands in the PdSe$_2$ pentagonal monolayer. https://doi.org/10.1039/d2cp01822e

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