prikaz prve stranice dokumenta Optical conductivity of anisotropic Dirac semimetals: The relaxation-time approximation
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Scientific paper - Original scientific paper
Optical conductivity of anisotropic Dirac semimetals: The relaxation-time approximation
Physical Review B, 109 (2024), 4; 045426. https://doi.org/10.1103/PhysRevB.109.045426
Kupčić, Ivan; Kordić, J.

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Kupčić, I. & Kordić, J. (2024). Optical conductivity of anisotropic Dirac semimetals: The relaxation-time approximation. Physical Review B, 109. (4). doi: 10.1103/PhysRevB.109.045426

Kupčić, Ivan and J. Kordić. "Optical conductivity of anisotropic Dirac semimetals: The relaxation-time approximation." Physical Review B, vol. 109, no. 4, 2024. https://doi.org/10.1103/PhysRevB.109.045426

Kupčić, Ivan and J. Kordić. "Optical conductivity of anisotropic Dirac semimetals: The relaxation-time approximation." Physical Review B 109, no. 4 (2024). https://doi.org/10.1103/PhysRevB.109.045426

Kupčić, I. and Kordić, J. (2024) 'Optical conductivity of anisotropic Dirac semimetals: The relaxation-time approximation', Physical Review B, 109(4). doi: 10.1103/PhysRevB.109.045426

Kupčić I, Kordić J. Optical conductivity of anisotropic Dirac semimetals: The relaxation-time approximation. Physical Review B [Internet]. 2024 [cited 2024 November 18];109(4). doi: 10.1103/PhysRevB.109.045426

I. Kupčić and J. Kordić, "Optical conductivity of anisotropic Dirac semimetals: The relaxation-time approximation", Physical Review B, vol. 109, no. 4, 2024. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:192736. [Accessed: 18 November 2024]

Metadata
Title (english)Optical conductivity of anisotropic Dirac semimetals: The relaxation-time approximation
AuthorIvan Kupčić
AuthorJ. Kordić
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
The current-dipole conductivity formula for doped three-dimensional Dirac semimetals is derived by using a modified gauge-invariant tight-binding approach. In a heavily doped regime, the effective number of charge carriers neff alpha alpha in the Drude contribution is found to be by a factor of 4 larger than the nominal electron concentration n. However, its structure is the same as in standard Fermi liquid theory. In a lightly doped regime, on the other hand, the ratio neff alpha alpha/n is much larger, with much more complex structure of neff alpha alpha. It is shown that the dc resistivity and reflectivity date measured in two TlBiSSe samples can be easily understood, even in the relaxation-time approximation, provided that finite quasiparticle lifetime effects in the momentum distribution functions are properly taken into account.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePhysical Review B
Numberingvol. 109, no. 4, 045426
p-ISSN2469-9950
e-ISSN2469-9969
DOIhttps://doi.org/10.1103/PhysRevB.109.045426
URN:NBNurn:nbn:hr:217:192736
Publication2024
Document URLhttps://link.aps.org/doi/10.1103/PhysRevB.109.045426
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Public note© 2024 American Physical Society. Received 19 October 2023. Revised 18 December 2023. Accepted 8 January 2024. Published 19 January 2024.
Created on2024-07-25 11:43:56