Self-energy effects and electron-phonon coupling in Fe-As superconductors
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Choi, K-Y | - |
dc.contributor.author | Lemmens, P. | - |
dc.contributor.author | Eremin, I. | - |
dc.contributor.author | Zwicknagl, G. | - |
dc.contributor.author | Berger, H. | - |
dc.contributor.author | Sun, G. L. | - |
dc.contributor.author | Sun, D. L. | - |
dc.contributor.author | Lin, C. T. | - |
dc.date.available | 2019-05-30T01:39:59Z | - |
dc.date.issued | 2010-03 | - |
dc.identifier.issn | 0953-8984 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/22560 | - |
dc.description.abstract | Doping and temperature dependent studies of optical phonon modes in Fe-122 pnictides are performed using Raman scattering experiments and compared with model calculations to elucidate the role of electron-phonon and spin-phonon interaction in this family of compounds. The frequency and linewidth of the B(1g) mode at around 210 cm(-1) is highlighted as appreciable anomalies at the superconducting and spin density wave transitions are observed that strongly depend on composition. We give estimates of the electron-phonon coupling related to this renormalization and calculate the phonon self-energy on the basis of a four-band model comparing different symmetries of the order parameters. In addition, we observe a pronounced quasi-elastic Raman response for the undoped compound, suggesting persisting magnetic fluctuations in the spin density wave state. | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | IOP PUBLISHING LTD | - |
dc.title | Self-energy effects and electron-phonon coupling in Fe-As superconductors | - |
dc.type | Article | - |
dc.identifier.doi | 10.1088/0953-8984/22/11/115802 | - |
dc.identifier.bibliographicCitation | JOURNAL OF PHYSICS-CONDENSED MATTER, v.22, no.11 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.wosid | 000275223400018 | - |
dc.identifier.scopusid | 2-s2.0-77749305057 | - |
dc.citation.number | 11 | - |
dc.citation.title | JOURNAL OF PHYSICS-CONDENSED MATTER | - |
dc.citation.volume | 22 | - |
dc.type.docType | Article | - |
dc.publisher.location | 영국 | - |
dc.subject.keywordPlus | LIGHT-SCATTERING | - |
dc.subject.keywordPlus | 43 K | - |
dc.subject.keywordPlus | BA0.6K0.4FE2AS2 | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.description.journalRegisteredClass | sci | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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