dc.contributor.author | Setty, Chandan | |
dc.contributor.author | Baggioli, Matteo | |
dc.contributor.author | Zaccone, Alessio | |
dc.contributor.other | UAM. Departamento de Física Teórica | es_ES |
dc.date.accessioned | 2022-11-07T11:37:05Z | |
dc.date.available | 2022-11-07T11:37:05Z | |
dc.date.issued | 2021-03-29 | |
dc.identifier.citation | Physical Review B 103.9 (2021): 094519 | es_ES |
dc.identifier.issn | 1098-0121 (print) | es_ES |
dc.identifier.issn | 1550-235X (online) | es_ES |
dc.identifier.uri | http://hdl.handle.net/10486/705050 | |
dc.description.abstract | Electron-phonon superconductors at high pressures have displayed the highest values of critical superconducting temperature Tc on record, now rapidly approaching room temperature. Despite the importance of high-P superconductivity in the quest for room-temperature superconductors, a mechanistic understanding of the effect of pressure and its complex interplay with phonon anharmonicity and superconductivity is missing, as numerical simulations can bring only system-specific details, clouding out key players controlling the physics. Here we develop a minimal model of electron-phonon superconductivity under an applied pressure which takes into account the anharmonic decoherence of the optical phonons. We find that Tc behaves nonmonotonically as a function of the ratio Γ/ω0, where Γ is the optical phonon damping and ω0 is the optical phonon energy at zero pressure and momentum. Optimal pairing occurs for a critical ratio Γ/ω0 when the phonons are on the verge of decoherence ("diffusonlike"limit). Our framework gives insights into recent experimental observations of Tc as a function of pressure in the complex BCS material TlInTe2 | es_ES |
dc.format.extent | 9 pag. | es_ES |
dc.format.mimetype | application/pdf | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | American Physical Society | es_ES |
dc.relation.ispartof | Physical Review B: Condensed Matter and Materials Physics | es_ES |
dc.rights | © 2021 American Physical Society | es_ES |
dc.subject.other | Anharmonicities | es_ES |
dc.subject.other | Applied Pressure | es_ES |
dc.subject.other | Effect of Pressure | es_ES |
dc.subject.other | Function of Pressure | es_ES |
dc.subject.other | Optical Phonon Energies | es_ES |
dc.subject.other | Optical Phonons | es_ES |
dc.subject.other | Room-Temperature Superconductors | es_ES |
dc.title | Anharmonic theory of superconductivity in the high-pressure materials | es_ES |
dc.type | article | es_ES |
dc.subject.eciencia | Física | es_ES |
dc.relation.publisherversion | https://doi.org/10.1103/PhysRevB.103.094519 | es_ES |
dc.identifier.doi | 10.1103/PhysRevB.103.094519 | es_ES |
dc.identifier.publicationfirstpage | 094519-1 | es_ES |
dc.identifier.publicationissue | 9 | es_ES |
dc.identifier.publicationlastpage | 094519-9 | es_ES |
dc.identifier.publicationvolume | 103 | es_ES |
dc.relation.projectID | Gobierno de España. SEV-2012-0249 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.rights.accessRights | openAccess | es_ES |
dc.facultadUAM | Facultad de Ciencias | es_ES |
dc.institutoUAM | Instituto de Física Teórica (IFT) | es_ES |