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Scientific paper - Original scientific paper
UV-active plasmons in alkali and alkaline-earth intercalated graphene
Physical Review B, 97 (2018), 20; 205426. https://doi.org/10.1103/PhysRevB.97.205426
Despoja, Vito; Marušić, Leonardo

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Despoja, V. & Marušić, L. (2018). UV-active plasmons in alkali and alkaline-earth intercalated graphene. Physical Review B, 97. (20). doi: 10.1103/PhysRevB.97.205426

Despoja, Vito and Leonardo Marušić. "UV-active plasmons in alkali and alkaline-earth intercalated graphene." Physical Review B, vol. 97, no. 20, 2018. https://doi.org/10.1103/PhysRevB.97.205426

Despoja, Vito and Leonardo Marušić. "UV-active plasmons in alkali and alkaline-earth intercalated graphene." Physical Review B 97, no. 20 (2018). https://doi.org/10.1103/PhysRevB.97.205426

Despoja, V. and Marušić, L. (2018) 'UV-active plasmons in alkali and alkaline-earth intercalated graphene', Physical Review B, 97(20). doi: 10.1103/PhysRevB.97.205426

Despoja V, Marušić L. UV-active plasmons in alkali and alkaline-earth intercalated graphene. Physical Review B [Internet]. 2018 [cited 2024 December 23];97(20). doi: 10.1103/PhysRevB.97.205426

V. Despoja and L. Marušić, "UV-active plasmons in alkali and alkaline-earth intercalated graphene", Physical Review B, vol. 97, no. 20, 2018. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:388405. [Accessed: 23 December 2024]

Metadata
Title (english)UV-active plasmons in alkali and alkaline-earth intercalated graphene
AuthorVito Despoja
MBZ: 255255
AuthorLeonardo Marušić
MBZ: 154115
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
The interband π and π + σ plasmons in pristine graphene and the Dirac plasmon in doped graphene are not applicable, since they are broad or weak, and weakly couple to an external longitudinal or electromagnetic probe. Therefore, the ab initio density functional theory is used to demonstrate that the chemical doping of the graphene by the alkali or alkaline-earth atoms dramatically changes the poor graphene excitation spectrum in the ultraviolet frequency range (4–10 eV). Four prominent modes are detected. Two of them are the intralayer plasmons with square-root dispersion, characteristic of the two-dimensional modes. The remaining two are the interlayer plasmons, very strong in the long-wavelength limit but damped for larger wave vectors. The optical absorption calculations show that the interlayer plasmons are both optically active, which makes these materials suitable for small-organic-molecule sensing. This is particularly intriguing because the optically active two-dimensional plasmons have not been detected in other materials.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePhysical Review B
Numberingvol. 97, no. 20, 205426
p-ISSN2469-9950
e-ISSN2469-9969
DOIhttps://doi.org/10.1103/PhysRevB.97.205426
URN:NBNurn:nbn:hr:217:388405
Publication2018
Document URLhttps://journals.aps.org/prb/abstract/10.1103/PhysRevB.97.205426
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Public note© 2018 American Physical Society. Received 2 March 2018; revised manuscript received 25 April 2018; published 16 May 2018.
Created on2020-03-01 17:02:39