Competition of disorder and electron-phonon coupling in 2 H − TaSe 2 − x S x ( 0 ≤ x ≤ 2 ) as evidenced by Raman spectroscopy
Само за регистроване кориснике
2024
Аутори
Blagojević, JovanĐurđić-Mijin, Sanja
Bekaert, J.
Opačić, Marko
Liu, Y.
Milošević, Milorad V.
Petrović, Čedomir
Popović, Zoran V.
Lazarević, Nenad
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The vibrational properties of 2𝐻−TaSe2−𝑥S𝑥 (0≤𝑥≤2) single crystals were probed using Raman spectroscopy and density functional theory calculations. The end members revealed two out of four symmetry-predicted Raman active modes, together with the pronounced two-phonon structure, attributable to the enhanced electron-phonon coupling. Additional peaks become observable due to crystallographic disorder for the doped samples. The evolution of the 𝐸2 2𝑔 mode Fano parameter reveals that the disorder has a weak impact on electron-phonon coupling, which is also supported by the persistence of two-phonon structure in doped samples. As such, this research provides thorough insights into the lattice properties, the effects of crystallographic disorder on Raman spectra, and the interplay of this disorder with the electron-phonon coupling in 2𝐻−TaSe2−𝑥S𝑥 compounds.
Извор:
Physical Review Materials, 2024, 8, 2, 024004-Финансирање / пројекти:
- Serbian Academy of Sciences and Arts [F-134]
- StrainedFeSC - Strain Effects in Iron Chalcogenide Superconductors (RS-ScienceFundRS-Promis-6062656)
- Senior Postdoctoral Fellow of the FWO [FellowshipNo.12ZZ323N]
- Erasmus+ program [KA107, 2018]
- U.S. DOE, Office of Science, Office of Basic Energy Sciences [Contract No. DE-SC0012704]
- COST Action [No. CA21144]
- Vinca Institute of Nuclear Sciences [Contract No. 451-03-66/2024-03/200017]
- Shanghai Key Laboratory of Material Frontiers Research in Extreme Environments, China [No. 22dz2260800]
- Shanghai Science and Technology Committee, China [No. 22JC1410300]
DOI: 10.1103/PhysRevMaterials.8.024004
ISSN: 2475-9953
Scopus: 2-s2.0-85185889685
Колекције
Институција/група
VinčaTY - JOUR AU - Blagojević, Jovan AU - Đurđić-Mijin, Sanja AU - Bekaert, J. AU - Opačić, Marko AU - Liu, Y. AU - Milošević, Milorad V. AU - Petrović, Čedomir AU - Popović, Zoran V. AU - Lazarević, Nenad PY - 2024 UR - https://vinar.vin.bg.ac.rs/handle/123456789/13344 AB - The vibrational properties of 2𝐻−TaSe2−𝑥S𝑥 (0≤𝑥≤2) single crystals were probed using Raman spectroscopy and density functional theory calculations. The end members revealed two out of four symmetry-predicted Raman active modes, together with the pronounced two-phonon structure, attributable to the enhanced electron-phonon coupling. Additional peaks become observable due to crystallographic disorder for the doped samples. The evolution of the 𝐸2 2𝑔 mode Fano parameter reveals that the disorder has a weak impact on electron-phonon coupling, which is also supported by the persistence of two-phonon structure in doped samples. As such, this research provides thorough insights into the lattice properties, the effects of crystallographic disorder on Raman spectra, and the interplay of this disorder with the electron-phonon coupling in 2𝐻−TaSe2−𝑥S𝑥 compounds. T2 - Physical Review Materials T1 - Competition of disorder and electron-phonon coupling in 2 H − TaSe 2 − x S x ( 0 ≤ x ≤ 2 ) as evidenced by Raman spectroscopy VL - 8 IS - 2 SP - 024004 DO - 10.1103/PhysRevMaterials.8.024004 ER -
@article{ author = "Blagojević, Jovan and Đurđić-Mijin, Sanja and Bekaert, J. and Opačić, Marko and Liu, Y. and Milošević, Milorad V. and Petrović, Čedomir and Popović, Zoran V. and Lazarević, Nenad", year = "2024", abstract = "The vibrational properties of 2𝐻−TaSe2−𝑥S𝑥 (0≤𝑥≤2) single crystals were probed using Raman spectroscopy and density functional theory calculations. The end members revealed two out of four symmetry-predicted Raman active modes, together with the pronounced two-phonon structure, attributable to the enhanced electron-phonon coupling. Additional peaks become observable due to crystallographic disorder for the doped samples. The evolution of the 𝐸2 2𝑔 mode Fano parameter reveals that the disorder has a weak impact on electron-phonon coupling, which is also supported by the persistence of two-phonon structure in doped samples. As such, this research provides thorough insights into the lattice properties, the effects of crystallographic disorder on Raman spectra, and the interplay of this disorder with the electron-phonon coupling in 2𝐻−TaSe2−𝑥S𝑥 compounds.", journal = "Physical Review Materials", title = "Competition of disorder and electron-phonon coupling in 2 H − TaSe 2 − x S x ( 0 ≤ x ≤ 2 ) as evidenced by Raman spectroscopy", volume = "8", number = "2", pages = "024004", doi = "10.1103/PhysRevMaterials.8.024004" }
Blagojević, J., Đurđić-Mijin, S., Bekaert, J., Opačić, M., Liu, Y., Milošević, M. V., Petrović, Č., Popović, Z. V.,& Lazarević, N.. (2024). Competition of disorder and electron-phonon coupling in 2 H − TaSe 2 − x S x ( 0 ≤ x ≤ 2 ) as evidenced by Raman spectroscopy. in Physical Review Materials, 8(2), 024004. https://doi.org/10.1103/PhysRevMaterials.8.024004
Blagojević J, Đurđić-Mijin S, Bekaert J, Opačić M, Liu Y, Milošević MV, Petrović Č, Popović ZV, Lazarević N. Competition of disorder and electron-phonon coupling in 2 H − TaSe 2 − x S x ( 0 ≤ x ≤ 2 ) as evidenced by Raman spectroscopy. in Physical Review Materials. 2024;8(2):024004. doi:10.1103/PhysRevMaterials.8.024004 .
Blagojević, Jovan, Đurđić-Mijin, Sanja, Bekaert, J., Opačić, Marko, Liu, Y., Milošević, Milorad V., Petrović, Čedomir, Popović, Zoran V., Lazarević, Nenad, "Competition of disorder and electron-phonon coupling in 2 H − TaSe 2 − x S x ( 0 ≤ x ≤ 2 ) as evidenced by Raman spectroscopy" in Physical Review Materials, 8, no. 2 (2024):024004, https://doi.org/10.1103/PhysRevMaterials.8.024004 . .