Anisotropic Ultrafast Dynamics in Doped Y1-zCazBa2Cu3O7-δ Superconducting Thin Films

摘要：

The anisotropic dynamics of photoinduced quasiparticle in theY1-xCaxBa2Cu3O7-δ (YCBCO) is revealed by using the orientation-resolved femtosecond reflection spectroscopy. This bulk-sensitive spectroscopy, combining with the well-textured (110)-and (100)-YCBCO thin films, serves as an effective probe to quasiparticle relaxation dynamics along different crystal-lographic orientations. Since the temperature at which the peak of temperature-dependent re-laxation time (τ) manifested in the transient reflectance (△R/R) measurements is believed to intimately relate to the opening of superconducting gap, the results reported here should shed some light on the issue of the competing order scenarios for over-doped high-Tc superconductors.

作者: C.W.Luo K.H.Wu J.-Y.Lin T.M.Uen Y.S.Gou J.-Y.Juang

作者单位: Department of Electrophysics,National Chiao Tung University,Hsinchu,Taiwan,R.O.C. Institute of Physics,National Chiao Tung University,Hsinchu,Taiwan,R.O.C. Department of Physics,National Taiwan Normal University,Taipei,Taiwan,R.O.C.

会议类型: 国际会议

会议名称: Progress in Electromagnetics Research Symposium 2008(2008年电磁学研究新进展学术研讨会)(PIERS 2008)

会议地点: 杭州

会议语种:英文

页码: 1-5

在线出版日期: 2008-03-24（万方平台首次上网日期，不代表论文的发表时间）