Ab initio theory of plasmonic superconductivity within the Eliashberg and density-functional formalisms
dc.bibliographicCitation.firstPage | 214508 | eng |
dc.bibliographicCitation.issue | 21 | eng |
dc.bibliographicCitation.volume | 102 | eng |
dc.contributor.author | Davydov, A. | |
dc.contributor.author | Sanna, A. | |
dc.contributor.author | Pellegrini, C. | |
dc.contributor.author | Dewhurst, J.K. | |
dc.contributor.author | Sharma, S. | |
dc.contributor.author | Gross, E.K.U. | |
dc.date.accessioned | 2021-12-06T06:30:19Z | |
dc.date.available | 2021-12-06T06:30:19Z | |
dc.date.issued | 2020 | |
dc.description.abstract | We extend the two leading methods for the ab initio computational description of phonon-mediated superconductors, namely Eliashberg theory and density-functional theory for superconductors (SCDFT), to include plasmonic effects. Furthermore, we introduce a hybrid formalism in which the Eliashberg approximation for the electron-phonon coupling is combined with the SCDFT treatment of the dynamically screened Coulomb interaction. The methods have been tested on a set of well-known conventional superconductors by studying how the plasmon contribution affects the phononic mechanism in determining the critical temperature (TC). Our simulations show that plasmonic SCDFT leads to a good agreement between predicted and measured TC's, whereas Eliashberg theory considerably overestimates the plasmon-mediated pairing and, therefore, TC. The hybrid approach, on the other hand, gives results close to SCDFT and overall in excellent agreement with experiments. | eng |
dc.description.version | publishedVersion | eng |
dc.identifier.uri | https://oa.tib.eu/renate/handle/123456789/7634 | |
dc.identifier.uri | https://doi.org/10.34657/6681 | |
dc.language.iso | eng | eng |
dc.publisher | Woodbury, NY : Inst. | eng |
dc.relation.doi | https://doi.org/10.1103/PhysRevB.102.214508 | |
dc.relation.essn | 2469-9969 | |
dc.relation.ispartofseries | Physical review : B : covering condensed matter and materials physics 102 (2020), Nr. 21 | eng |
dc.rights.license | CC BY 4.0 Unported | eng |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | eng |
dc.subject | Superconductivity | eng |
dc.subject | Plasmos | eng |
dc.subject | Pairing mechanics | eng |
dc.subject.ddc | 530 | eng |
dc.title | Ab initio theory of plasmonic superconductivity within the Eliashberg and density-functional formalisms | eng |
dc.type | article | eng |
dc.type | Text | eng |
dcterms.bibliographicCitation.journalTitle | Physical review : B : covering condensed matter and materials physics | eng |
tib.accessRights | openAccess | eng |
wgl.contributor | MBI | eng |
wgl.subject | Physik | eng |
wgl.type | Zeitschriftenartikel | eng |
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