Plasmon in dispersive nodal line semimetal

Autor:	Željana Bonačić Lošić
Rok vydání:	2022
Předmět:	General Physics and Astronomy Nodal line semimetals Plasmons Energy-loss function Dielectric function Electron–hole excitations
Zdroj:	Canadian Journal of Physics. 100:303-308
ISSN:	1208-6045 0008-4204
DOI:	10.1139/cjp-2021-0371
Popis:	We studied the plasmon mode of a nodal line semimetal with two-dimensional Dirac electron energy bands and the long-range three-dimensional Coulomb electron–electron interaction within the random phase approximation. We investigated the influence of the interband electron–hole excitations on the plasmon mode by analyzing the energy-loss function. Our calculations showed that the spectral weight of the plasmon mode diminished as it entered into the interband electron–hole continuum. As long as it stayed below this continuum, it was spectroscopically observable within the long-wavelength limit.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c417b38f630b3703106b84d34b31d51 https://doi.org/10.1139/cjp-2021-0371 Zobrazit plný text záznamu Plný text ve formátu PDF