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Article (Scientific journals)
Optical Excitation of Coherent THz Dynamics of the Rare-Earth Lattice through Resonant Pumping of f-f Electronic Transition in a Complex Perovskite DyFeO3
Gareev, T. T.; Sasani, Alireza; Khusyainov, D. I. et al.
2024In Physical Review Letters, 133 (24)
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Keywords :
Ultrafast laser excitation,; THz Dynamics; Rare Earth Perovskite; DyFeO3
Abstract :
[en] Resonant pumping of the electronic 𝑓−𝑓 transitions in the orbital multiplet of dysprosium ions (Dy3+) in a complex perovskite DyFeO3 is shown to impulsively launch THz lattice dynamics corresponding to the 𝐵2⁢𝑔 phonon mode, which is dominanted by the motion of Dy3+ ions. The findings, supported by symmetry analysis and density-functional theory calculations, not only provide a novel route for highly selective excitation of the rare-earth crystal lattices but also establish important relationships between the symmetry of the electronic and lattice excitations in complex oxides.
Research Center/Unit :
Q-MAT - Quantum Materials - ULiège
Disciplines :
Physics
Author, co-author :
Gareev, T. T. ;  Radboud University Nijmegen
Sasani, Alireza  ;  Université de Liège - ULiège > Département de physique > Physique théorique des matériaux ; Université de Lige
Khusyainov, D. I. ;  Radboud University Nijmegen
Bousquet, Eric  ;  Université de Liège - ULiège > Département de physique ; Université de Lige
Gareeva, Z. V. ;  Ufa Federal Research Center of the RAS ; Ufa University of Science and Technology
Kimel, A. V. ;  Radboud University Nijmegen
Afanasiev, D. ;  Radboud University Nijmegen
Language :
English
Title :
Optical Excitation of Coherent THz Dynamics of the Rare-Earth Lattice through Resonant Pumping of f-f Electronic Transition in a Complex Perovskite DyFeO3
Publication date :
09 December 2024
Journal title :
Physical Review Letters
ISSN :
0031-9007
eISSN :
1079-7114
Publisher :
American Physical Society (APS)
Volume :
133
Issue :
24
Peer reviewed :
Peer Reviewed verified by ORBi
Tags :
CÉCI : Consortium des Équipements de Calcul Intensif
Tier-1 supercomputer
European Projects :
H2020 - 861300 - COMRAD - Cold Opto-Magnetism for Random Access Devices
Funders :
EU - European Union
European Union. Marie Skłodowska-Curie Actions
ERC - European Research Council
OCW - Ministerie van Onderwijs, Cultuur en Wetenschap
Available on ORBi :
since 17 December 2024

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