Elastic, electronic, lattice dynamical properties and electron-phonon interaction in the ternary superconductors Sr(GaGe) and Sr(GaSi) at high pressure

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dc.authorid0000-0002-4004-8696
dc.contributor.authorParlak, Cihan
dc.date.accessioned2021-06-23T19:45:28Z
dc.date.available2021-06-23T19:45:28Z
dc.date.issued2017
dc.departmentBAİBÜ, Fen Edebiyat Fakültesi, Fizik Bölümüen_US
dc.description.abstractWe report the results of an ab - initio study of electronic, and detailed lattice dynamical properties of superconducting materials, Sr(GaGe) and Sr(GaSi) under high pressure. The phonon dispersion curves along the high-symmetry directions and phonon frequencies parameters at the Brillouin zone center are computed by using density functional perturbation theory while the elastic constants are calculated in metric-tensor formulation. The Vickers hardness belonging to the compounds is also evaluated clearly. Moreover the band structures, partial densities of states and Fermi surface topologies are discussed in detail. At the same time we advance in-depth understanding of the relationship between the properties determined and superconducting characteristic. The transition temperatures for the compounds have been detected. We find the values of electron-phonon coupling constant as 0.99 and 0.92 for Sr(GaSi) and Sr(GaGe), respectively.en_US
dc.identifier.doi10.1016/j.physb.2017.06.077
dc.identifier.endpage257en_US
dc.identifier.issn0921-4526
dc.identifier.issn1873-2135
dc.identifier.scopus2-s2.0-85021864138en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage251en_US
dc.identifier.urihttps://doi.org/10.1016/j.physb.2017.06.077
dc.identifier.urihttps://hdl.handle.net/20.500.12491/9160
dc.identifier.volume521en_US
dc.identifier.wosWOS:000410633400037en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorParlak, Cihan
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofPhysica B-Condensed Matteren_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectSuperconductorsen_US
dc.subjectAb Initio Calculationsen_US
dc.subjectElastic Propertiesen_US
dc.subjectElectronic Structureen_US
dc.subjectPhononsen_US
dc.titleElastic, electronic, lattice dynamical properties and electron-phonon interaction in the ternary superconductors Sr(GaGe) and Sr(GaSi) at high pressureen_US
dc.typeArticleen_US

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