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Ultrafast loss of lattice coherence in the light-induced structural phase transition of V2 O3
dc.contributor.author | Johnson, Allan Stewart | |
dc.contributor.author | Moreno Mencía, David | |
dc.contributor.author | Amuah, Emmanuel Baffu | |
dc.contributor.author | Menghini, Mariela | |
dc.contributor.author | Locquet, Jean-Pierre | |
dc.contributor.author | Giannetti, Claudio | |
dc.contributor.author | Pastor, Ernest | |
dc.contributor.author | Wall, Simon | |
dc.date.accessioned | 2023-05-17T12:06:41Z | |
dc.date.available | 2023-05-17T12:06:41Z | |
dc.date.issued | 2022-12-12 | |
dc.identifier.citation | Johnson, A. S., Moreno-Mencía, D., Amuah, E. B., Menghini, M., Locquet, J. P., Giannetti, C., Pastor, E. & Wall, S. E. (2022). Ultrafast Loss of Lattice Coherence in the Light-Induced Structural Phase Transition of V2 O3. Physical Review Letters, 129(25), 255701. | ca_CA |
dc.identifier.issn | 0031-9007 | |
dc.identifier.issn | 1079-7114 | |
dc.identifier.uri | http://hdl.handle.net/10234/202525 | |
dc.description.abstract | In solids, the response of the lattice to photoexcitation is often described by the inertial evolution on an impulsively modified potential energy surface which leads to coherent motion. However, it remains unknown if vibrational coherence is sustained through a phase transition, during which coupling between modes can be strong and may lead to rapid loss of coherence. Here we use coherent phonon spectroscopy to track lattice coherence in the structural phase transition of V2 O3. In both the low and high symmetry phases unique coherent phonon modes are generated at low fluence. However, coherence is lost when driving between the low and high symmetry phases. Our results suggest strongly damped noninertial dynamics dominate during the phase transition due to disorder and multimode coupling. | ca_CA |
dc.format.extent | 9 p. | ca_CA |
dc.format.mimetype | application/pdf | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | American Physical Society | ca_CA |
dc.relation | European Union's Horizon 2020 Research and Innovation Programme | ca_CA |
dc.relation.isPartOf | Physical Review Letters, Vol. 129, Iss. 25 (2022) | ca_CA |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | ca_CA |
dc.subject | dynamical phase transitions | ca_CA |
dc.subject | lattice dynamics | ca_CA |
dc.subject | metal-insulator transition | ca_CA |
dc.subject | optical phonons | ca_CA |
dc.subject | phase transitions | ca_CA |
dc.subject | photoinduced effect | ca_CA |
dc.subject | solid-solid transformations | ca_CA |
dc.title | Ultrafast loss of lattice coherence in the light-induced structural phase transition of V2 O3 | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | https://doi.org/10.1103/PhysRevLett.129.255701 | |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | ca_CA |
dc.type.version | info:eu-repo/semantics/acceptedVersion | ca_CA |
project.funder.name | European Research Council (ERC) | ca_CA |
project.funder.name | Agencia Estatal de Investigación. Ministerio de Ciencia e Innovación | ca_CA |
project.funder.name | Generalitat de Catalunya / FEDER | ca_CA |
oaire.awardNumber | Grant Agreement No. 758461 | ca_CA |
oaire.awardNumber | PGC2018-097027-B-I00 | ca_CA |
oaire.awardNumber | CEX2019-000910-S | ca_CA |
oaire.awardNumber | QuantumCAT U16-011424 | ca_CA |
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