Ultrafast pump-probe spectroscopic signatures of superconducting and pseudogap phases in YBa2Cu3O7−δ films

• Main Authors: Zhang, Chunfeng, Li, Wei, He, Bin, Wang, Ye, Yang, Fan, Wang, Xiaoyong, Xiao, Min, Chakhalian, J., Gray, B. A.
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2014
• Subjects: DRNTU::Science::Physics
• Online Access: https://hdl.handle.net/10356/101385; http://hdl.handle.net/10220/18600
• Institution: Nanyang Technological University

Femtosecond pump-probe spectroscopy is applied to identify transient optical signatures of phase transitions in nearly optimally doped YBa2Cu3O7−δ films. To elucidate the dynamics of superconducting and pseudogap phases, the slow thermal component is removed from the time-domain traces of photo-indu...