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dc.contributor.authorWu, KHen_US
dc.contributor.authorLuo, CWen_US
dc.contributor.authorJuang, JYen_US
dc.contributor.authorUen, TMen_US
dc.contributor.authorGou, YSen_US
dc.date.accessioned2014-12-08T15:45:06Z-
dc.date.available2014-12-08T15:45:06Z-
dc.date.issued2000-07-01en_US
dc.identifier.issn0921-4526en_US
dc.identifier.urihttp://dx.doi.org/10.1016/S0921-4526(99)02258-9en_US
dc.identifier.urihttp://hdl.handle.net/11536/30418-
dc.description.abstractWe have systematically measured the transient reflectivity (Delta R/R) in Pr-doped YBCO (PrxY1-xBa2Cu3O7) and partially oxygen deficient YBCO (YBa2Cu3O7-delta) thin films at temperatures ranging from 300 to 12 K by using the femtosecond pump-probe technique. Measurements performed at low temperatures indicate that the magnitude, polarity, and relaxation time of the transient reflectivity is strongly dependent on the photon energy and pumping intensity of the optical excitation, the ambient temperature, and the doping level of the superconducting thin films. Moreover, the temperature dependence of the Fermi-level position was also observed. (C) 2000 Elsevier Science B.V. All rights reserved.en_US
dc.language.isoen_USen_US
dc.subjectfemtosecond laseren_US
dc.subjectoxygen deficiencyen_US
dc.subjectYBaCuO substituteden_US
dc.subjectultrafast dynamicsen_US
dc.titleUltrafast dynamics in Pr-doped and oxygen-deficient YBCO films by femtosecond spectroscopyen_US
dc.typeArticle; Proceedings Paperen_US
dc.identifier.doi10.1016/S0921-4526(99)02258-9en_US
dc.identifier.journalPHYSICA Ben_US
dc.citation.volume284en_US
dc.citation.issueen_US
dc.citation.spage939en_US
dc.citation.epage940en_US
dc.contributor.department電子物理學系zh_TW
dc.contributor.departmentDepartment of Electrophysicsen_US
dc.identifier.wosnumberWOS:000087311700468-
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