2023
DOI: 10.48550/arxiv.2301.06521
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Possible realization of hyperbolic plasmons in a few-layered rhenium disulfide

Abstract: The in-plane structural anisotropy in low-symmetric layered compound rhenium disulfide (ReS2) makes it a candidate to host and tune electromagnetic phenomena specific for anisotropic media. In particular, optical anisotropy may lead to the appearance of hyperbolic plasmons, a highly desired property in optoelectronics. The necessary condition is a strong anisotropy of the principal components of the dielectric function, such that at some frequency range, one component is negative and the other is positive, i.e… Show more

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Cited by 1 publication
(3 citation statements)
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“…The geometrically optimized structure was obtained after self-consistent field calculations were completed. The lattice constants for optimized structure of ReS 2 are a = 6.399, b = 6.503, c = 7.286 Å which is found to agree with the earlier results [31]. Then the paths for Brillouin zone were created with default values of the k-points for band structures and density of states.…”
Section: Methodssupporting
confidence: 79%
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“…The geometrically optimized structure was obtained after self-consistent field calculations were completed. The lattice constants for optimized structure of ReS 2 are a = 6.399, b = 6.503, c = 7.286 Å which is found to agree with the earlier results [31]. Then the paths for Brillouin zone were created with default values of the k-points for band structures and density of states.…”
Section: Methodssupporting
confidence: 79%
“…Since in the bulk structures the correction in band gap using other functionals becomes negligible we provided here GGA+PBE results for electronic and optical properties. While earlier theoretical [31] results reveal bandgap of 1.15 eV for ReS 2 experimental [34][35][36][37] results indicate band gap of 1.35 eV. The estimation of band gap from the optical properties calculation also exhibit the band gap in the range of 1.3-1.35 eV for ReS 2 .…”
Section: Resultsmentioning
confidence: 65%
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