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 | Symko, Orest George; Vardeny, Zeev Valentine | Femtosecond optical detection of quasiparticle dynamics in high-Tc YBa2Cu3O7- 8 superconducting thin films | Femtosecond dynamics of photogenerated quasiparticles in YBa2Cu307-δ superconducting thin films shows at T ≤ Tc two main electronic processes: (i) quasiparticle avalanche production during hot-carrier thermalization, which takes about 300 fsec; (ii) recombination of quasiparticles to form Cooper ... | Quasiparticle dynamics; High-Tc; Femtosecond dynamics; Photogenerated quasiparticles | 1990-11 |