Full metadata record
DC Field | Value | Language |
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dc.contributor.author | 양인상 | - |
dc.date.accessioned | 2016-08-28T11:08:30Z | - |
dc.date.available | 2016-08-28T11:08:30Z | - |
dc.date.issued | 1995 | - |
dc.identifier.issn | 0163-1829 | - |
dc.identifier.other | OAK-12453 | - |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/228599 | - |
dc.description.abstract | Recent studies suggest that the apical oxygen plays an important role in high-Tc superconductivity of mercury-based superconductors HgBa2Can-1CunO2n+2+δ [Hg-12(n-1)n]. Among strong Raman peaks at ∼570 and ∼ 585 cm-1, the mode at ∼ 585 cm-1 has been determined to be the A1g mode of the apical oxygen. However, the origin of the mode near 570 cm-1 is still in question. In order to clarify the origin of the 570 cm-1 mode, we have carried out Raman measurements on the Hg1-xTlxBa2(Ca0.86Sr0.14)2Cu3O8+δ systems, where the amount of the oxygen in the Hg/Tl-O plane is controlled by the doping level of Tl ions. The results show that the 570 cm-1 peak does not arise from the modes of the interstitial oxygens in the Hg/Tl-O plane, but from the A1g-type mode of the apical oxygen. From our analysis, it is shown that the 570 cm-1 mode arises from the apical oxygen OA with the neighboring interstitial oxygen Oδ, while the 585 cm-1 mode is from the OA without the nearest Oδ neighbor. We conclude that the apical oxygens in the Hg-12(n-1)n systems can have two distinctive sets of Oδ environment. © 1995 The American Physical Society. | - |
dc.language | English | - |
dc.title | Raman modes of the apical oxygen in mercury-based superconductors | - |
dc.type | Article | - |
dc.relation.issue | 21 | - |
dc.relation.volume | 52 | - |
dc.relation.index | SCOPUS | - |
dc.relation.startpage | 15078 | - |
dc.relation.lastpage | 15081 | - |
dc.relation.journaltitle | Physical Review B | - |
dc.identifier.doi | 10.1103/PhysRevB.52.15078 | - |
dc.identifier.scopusid | 2-s2.0-0006846641 | - |
dc.author.google | Yang I.-S. | - |
dc.author.google | Lee H.-G. | - |
dc.author.google | Hur N.H. | - |
dc.author.google | Yu J. | - |
dc.contributor.scopusid | 양인상(7101797839) | - |
dc.date.modifydate | 20230210140835 | - |