Anisotropic photoexcited carrier dynamics in (100)-, (001)-, and (110)-oriented YBCO films by polarized ultrafast optical spectroscopy

Chih-Wei Luo*, M. H. Chen, C. C. Chiu, S. P. Chen, Kaung-Hsiung Wu, Jiunn-Yuan Lin, Jenh-Yih Juang, T. M. Uen, Y. S. Gou

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研究成果: Article同行評審

2 引文 斯高帕斯(Scopus)

摘要

We report the time-resolved ultrafast optical spectroscopy results obtained from a series of well characterized (001)-, (100)- and (110)-oriented YBa2Cu3O7-δ (YBCO) superconducting films prepared by pulsed laser deposition. The well-controlled film orientation has allowed us to probe the relaxation dynamics along various crystal orientations using respectively polarized pump and probe laser beams. The significant anisotropies in both the magnitude of the characteristic relaxation time and the temperature dependence of the photo-induced transient reflectance change indicate the nature of relaxation channel might be intrinsically different along different orientations. The implications of the results on the fundamental characteristics concerning superconducting gaps are discussed.

原文English
頁(從 - 到)767-774
頁數8
期刊Journal of Low Temperature Physics
131
發行號5-6
DOIs
出版狀態Published - 6月 2003

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