Dynamics of the superconducting order parameter through ultrafast normal-to-superconducting phase transition in Bi$_{2}$Sr$_{2}$CaCu$_{2}$O$_{8+\delta}$ from multi-pulse polarization-resolved transient optical reflectivity

Autor: Madan, I., Baranov, V. V., Toda, Y., Oda, M., Kurosawa, T., Kabanov, V. V., Mertelj, T., Mihailovic, D.
Rok vydání: 2017
Předmět:
Zdroj: Phys. Rev. B 96, 184522 (2017)
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevB.96.184522
Popis: A systematic temperature dependent study of the femtosecond optical superconducting (SC) state destruction and recovery in Bi$_{2}$Sr$_{2}$CaCu$_{2}$O$_{8+\delta}$ cuprate superconductor by means of the all-optical polarization-sensitive multi-pulse spectroscopy is presented. At low temperatures and a partial SC state suppression an anisotropic SC-gap recovery-timescale is suggested by the data. The SC state destruction and recovery dynamics are compared to the recent TR-ARPES-inferred SC-gap dynamics and a qualitative agreement is found. Using a phenomenological response function the experimental data are also compared to time dependent Ginzburg-Landau model simulations.
Databáze: arXiv