Naslov
Plasmon in topological nodal line semimetal

Autori
Bonačić Lošić, Željana

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Solid-State Science & Research / Biliškov, Nikola ; Karadeniz, Bahar ; Pantalon Juraj, Natalija - Zagreb : Institut Ruđer Bošković, 2023, 51-51

ISBN
978-953-7941-48-2

Skup
Solid-State Science & Research 2023

Mjesto i datum
Zagreb, Hrvatska, 28.06.2023. - 30.06.2023

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Nije recenziran

Ključne riječi
Plasmon ; Nodal line semimetal

Sažetak
Topological nodal line semimetals (NLSMs) that have been intensively studied lately are three- dimensional materials with linear Dirac electron energy bands crossing at dispersive nodal lines. We investigated the plasmon collective mode of a dispersive topological 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 (RPA). We analyzed the effect of the interband electron–hole excitations on the plasmon mode by evaluating the energy-loss function. Our calculations showed that the plasmon mode was optical, strongly anisotropic and hardly damped as it entered into the interband electron–hole continuum. The obtained results for the plasmon mode are consistent with earlier experimental and theoretical results for these materials.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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