標題: Anisotropic ultrafast dynamics in doped Y1-xCaxBa2Cu3O7-delta superconducting thin films
作者: Luo, C. W.
Wu, K. H.
Lin, J. -Y.
Uen, T. M.
Gou, Y. S.
Juang, J. -Y.
電子物理學系
Department of Electrophysics
公開日期: 2008
摘要: The anisotropic dynamics of photoinduced quasiparticle in the Y1-xCaxBa2Cu3O7-delta (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 crystallographic orientations. Since the temperature at which the peak of temperature-dependent relaxation time (tau) manifested in the transient reflectance (Delta 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-T-c superconductors.
URI: http://hdl.handle.net/11536/1063
ISBN: 978-1-934142-00-4
ISSN: 1559-9450
期刊: PIERS 2008 HANGZHOU: PROGRESS IN ELECTROMAGNETICS RESEARCH SYMPOSIUM, VOLS I AND II, PROCEEDINGS
起始頁: 307
結束頁: 311
Appears in Collections:Conferences Paper