2002/03/01 by R.D. Averitt, R. D. Averitt, V.K. Thorsmølle +7 · 1 citation
Physics and Astronomy · #Conductivity #Physics of Superconductivity and Magnetism #Picosecond #Quasiparticle #Relaxation (psychology) #Superconductivity #Superconductivity in MgB2 and Alloys #Thin film #Topological Materials and Phenomena #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1016/s0921-4526(01)01166-8
To appear in Physica B
openalex publication_date 2002/03/01 · arxiv created 2002/04/03 · arxiv updated 2009/11/30 · openalex created_date 2017/03/16 · openalex updated_date 2026/08/05
We have measured the picosecond conductivity dynamics in Y1-xPrxBa2Cu3O7 thin films from 0.3-2.0 terahertz. Our experimental technique measures the complex conductivity σre(ω) + iσim(ω) permitting the simultaneous observation of superconducting pair and quasiparticle dynamics. We emphasize aspects of the conductivity dynamics which extend our previous results. In particular, the recovery of σre is faster than σim, and the recovery of σim decreases with increasing frequency. This suggests another carrier relaxation pathway, in addition to superconducting pair recovery, following optical excitation.