dc.contributor.author | Dangic, Dorde | |
dc.contributor.author | Monacelli, Lorenzo | |
dc.contributor.author | Bianco, Raffaello | |
dc.contributor.author | Mauri, Francesco | |
dc.contributor.author | Errea Lope, Ion | |
dc.date.accessioned | 2024-05-10T12:58:12Z | |
dc.date.available | 2024-05-10T12:58:12Z | |
dc.date.issued | 2024-05-09 | |
dc.identifier.citation | Communications Physics 7 : (2024) // Article ID 150 | es_ES |
dc.identifier.issn | 2399-3650 | |
dc.identifier.uri | http://hdl.handle.net/10810/67821 | |
dc.description.abstract | Phonon anharmonicity plays a crucial role in determining the stability and vibrational properties of high-pressure hydrides. Furthermore, strong anharmonicity can render phonon quasiparticle picture obsolete questioning standard approaches for modeling superconductivity in these material systems. In this work, we show the effects of non-Lorentzian phonon lineshapes on the superconductivity of high-pressure solid hydrogen. We calculate the superconducting critical temperature TC ab initio considering the full phonon spectral function and show that it overall enhances the TC estimate. The anharmonicity-induced phonon softening exhibited in spectral functions increases the estimate of the critical temperature, while the broadening of phonon lines due to phonon-phonon interaction decreases it. Our calculations also reveal that superconductivity emerges in hydrogen in the Cmca − 12 molecular phase VI at pressures between 450 and 500 GPa and explain the disagreement between the previous theoretical results and experiments. | es_ES |
dc.description.sponsorship | This work is supported by the European Research Council (ERC) under the European Unions Horizon 2020 research and innovation program (grant agreement No. 802533), the Department of Education, Universities and Research of the Eusko Jaurlaritza and the University of the Basque Country UPV/EHU (Grant no. IT1527-22), and the Spanish Ministerio de Ciencia e Innovacion (Grant no. PID2022-142861NA-I00). L.M. acknowledges the European Union MSCA-IF fellowship for funding the project THERMOH. We acknowledge PRACE for awarding us access to the EuroHPC supercomputer LUMI located in CSC’s data center in Kajaani, Finland, through EuroHPC Joint Undertaking (EHPC-REG-2022R03-090). | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Springer Nature | es_ES |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/802533 | es_ES |
dc.relation | info:eu-repo/grantAgreement/MCIN/PID2022-142861NA-I00 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | * |
dc.title | Large impact of phonon lineshapes on the superconductivity of solid hydrogen | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | © 2024 The Author(s). This article is licensed under a Creative Commons Attribution 4.0 International License, | es_ES |
dc.relation.publisherversion | https://www.nature.com/articles/s42005-024-01643-4 | es_ES |
dc.identifier.doi | 10.1038/s42005-024-01643-4 | |
dc.contributor.funder | European Commission | |
dc.departamentoes | Física aplicada I | es_ES |
dc.departamentoeu | Fisika aplikatua I | es_ES |