Show simple item record

dc.contributor.authorMorice, Cen
dc.contributor.authorAkashi, Ren
dc.contributor.authorKoretsune, Ten
dc.contributor.authorSaxena, Siddharthen
dc.contributor.authorArita, Ren
dc.date.accessioned2017-08-25T15:02:36Z
dc.date.available2017-08-25T15:02:36Z
dc.date.issued2017-05-01en
dc.identifier.issn2469-9950
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/266886
dc.description.abstractSuperconductivity in novel bismuth-sulfur superconductors has attracted large research efforts, both experimental and theoretical, but a consensus on the nature of superconductivity in these materials has yet to be reached. Using density functional theory for superconductors, we study the electron-phonon pairing mechanism in LaO0.5F0.5BiS2. We first confirm the presence of a commensurate charge density wave instability, in accordance with previous studies. Using a recently developed integration scheme for the electron-phonon coupling, we found that its strength is much lower than previously calculated, due to improved density of states calculations. We finally conclude that conventional phonon-mediated pairing cannot explain the high superconducting transition temperatures observed in this material.
dc.description.sponsorshipWe acknowledge support from EPSRC, Corpus Christi College, and JST, PRESTO and JSPS KAKENHI grants number JP15H03696, JP16H00924, JP16H06345 and JP15K20940. This work was supported by MEXT Element Strategy Initiative to Form Core Research Center in Japan.
dc.language.isoenen
dc.publisherAmerican Physical Society
dc.titleWeak phonon-mediated pairing in BiS2 superconductor from first principlesen
dc.typeArticle
prism.issueIdentifier18en
prism.publicationDate2017en
prism.publicationNamePhysical Review B - Condensed Matter and Materials Physicsen
prism.volume95en
dc.identifier.doi10.17863/CAM.12951
rioxxterms.versionofrecord10.1103/PhysRevB.95.180505en
rioxxterms.versionAMen
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2017-05-01en
dc.contributor.orcidSaxena, Siddharth [0000-0002-6321-5629]
dc.identifier.eissn2469-9969
rioxxterms.typeJournal Article/Reviewen
cam.issuedOnline2017-05-19en


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record