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  Vibrational coherent control of localized d-d electronic excitation

Marciniak, A., Marcantoni, S., Giusti, F., Glerean, F., Sparapassi, G., Nova, T. F., et al. (2020). Vibrational coherent control of localized d-d electronic excitation.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-D622-2 Version Permalink: http://hdl.handle.net/21.11116/0000-0006-D623-1
Genre: Paper

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2003.13447.pdf (Preprint), 5MB
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2003.13447.pdf
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2020
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https://arxiv.org/abs/2003.13447 (Preprint)
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 Creators:
Marciniak, A.1, 2, Author
Marcantoni, S.1, 3, Author
Giusti, F.1, 2, Author
Glerean, F.1, 2, Author
Sparapassi, Giorgia1, 2, Author
Nova, T. F.4, Author              
Cartella, A.4, Author              
Latini, S.5, Author              
Valiera, F.1, Author
Rubio, A.5, Author              
van den Brink, J.6, Author
Benatti, F.1, 3, Author
Fausti, D.1, 2, 7, Author
Affiliations:
1Department of Physics, University of Trieste, ou_persistent22              
2Elettra-Sincrotrone Trieste S.C.p.A., ou_persistent22              
3National Institute for Nuclear Physics (INFN), Trieste Section, ou_persistent22              
4Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938293              
5Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266715              
6Leibniz Institute for Solid State and Materials Research, ou_persistent22              
7Department of Chemistry, Princeton University, ou_persistent22              

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 Abstract: Addressing the role of quantum coherence in the interplay between the different matter constituents (electrons, phonons and spin) is a critical step towards understanding transition metal oxides and design complex materials with new functionalities. Here we use coherent vibrational control of onsite d-d electronic transitions in a model edge-sharing insulating transition metal oxide (CuGeO3) to single-out the effects of vibrational coherence in electron-phonon coupling. By comparing time domain experiments based on high and low frequency ultrashort pumps with a fully quantum description of phonon assisted absorption, we could distinguish the processes associated to incoherent thermal lattice fluctuations from those driven by the coherent motion of the atoms. In particular, while thermal fluctuation of the phonon bath uniformly increases the electronic absorption, the resonant excitation of phonon modes results also in light-induced transparency which is coherently controlled by the vibrational motion.

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Language(s): eng - English
 Dates: 2020-03-31
 Publication Status: Published online
 Pages: 40
 Publishing info: -
 Table of Contents: -
 Rev. Type: No review
 Identifiers: arXiv: 2003.13447
 Degree: -

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