Ultrafast quasiparticle dynamics of FeTe0.75Se0.25 superconductor

The electron-phonon coupling constant (λ≈0.45) obtained from femtosecond pump-probe reflection measurements suggests that a phonon-mediated process cannot be the dominant mechanism for superconductivity of FeTe0.75Se0.25.

Bibliographic Details
Main Authors: Katagiri T., Kitajima M., Takeda J., Katayama I., Eda T., Hu J., Kabasawa Y., Sasagawa T., Nakamura K. G.
Format: Article
Language:English
Published: EDP Sciences 2013-03-01
Series:EPJ Web of Conferences
Online Access:http://dx.doi.org/10.1051/epjconf/20134103009