Plane-polarized Raman continuum in the insulating and superconducting layered cuprates
DC Field | Value | Language |
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dc.contributor.author | Reznik D. | - |
dc.contributor.author | Cooper S.L. | - |
dc.contributor.author | Klein M.V. | - |
dc.contributor.author | Lee, Won Choon | - |
dc.contributor.author | Ginsberg D.M. | - |
dc.contributor.author | Maksimov A.A. | - |
dc.contributor.author | Puchkov A.V. | - |
dc.contributor.author | Tartakovskii I.I. | - |
dc.contributor.author | Cheong S.-W. | - |
dc.date.accessioned | 2022-04-19T14:05:20Z | - |
dc.date.available | 2022-04-19T14:05:20Z | - |
dc.date.issued | 1993-09 | - |
dc.identifier.issn | 0163-1829 | - |
dc.identifier.uri | https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/151043 | - |
dc.description.abstract | Electronic properties of copper oxygen planes (and chains in Y-Ba-Cu-O) were studied with Raman spectroscopy of plane-polarized photons. The electronic continuum was found to be independent of doping in 2:1:4 and 1:2:3 materials at energies above ∼1000 cm-1. Temperature dependence at low energies differs significantly in undoped, lightly doped, and fully doped YBa2Cu3O6+x. A feature consistent with the superconducting gap was observed below Tc in YBa2Cu3O6.9 in all scattering geometries. However, the gaplike redistribution was not complete, with 40-60 % of states not shifted to higher energies at temperatures well below Tc. Above Tc the temperature dependence strongly depends on scattering geometry: the continuum is temperature independent (marginal-Fermi-liquid-like) in XX (x2) and X'X' (x2+y2) geometry; it has a Bose-factor temperature dependence in X'Y' (x2-y2) geometry, and a weak temperature dependence somewhat smaller than the Bose factor in YY (y2) geometry. A two-boson-like temperature dependence of the low-energy continuum is found in YBa2Cu3O6.1 and Sm2CuO4. It becomes one-particle-like in Y-Ba-Cu-O once small doping levels are introduced. Constraints these results place on theoretical models are discussed. © 1993 The American Physical Society. | - |
dc.format.extent | 12 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | AMER PHYSICAL SOC | - |
dc.title | Plane-polarized Raman continuum in the insulating and superconducting layered cuprates | - |
dc.type | Article | - |
dc.publisher.location | 미국 | - |
dc.identifier.doi | 10.1103/PhysRevB.48.7624 | - |
dc.identifier.scopusid | 2-s2.0-0000287057 | - |
dc.identifier.wosid | A1993LY03900095 | - |
dc.identifier.bibliographicCitation | PHYSICAL REVIEW B, v.48, no.10, pp 7624 - 7635 | - |
dc.citation.title | PHYSICAL REVIEW B | - |
dc.citation.volume | 48 | - |
dc.citation.number | 10 | - |
dc.citation.startPage | 7624 | - |
dc.citation.endPage | 7635 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.identifier.url | https://journals.aps.org/prb/abstract/10.1103/PhysRevB.48.7624 | - |
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