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Photoinduced excited-state dynamics in Co-doped BaFe2As2 superconducting films
- Authors
- Kolodka, Roman; Bartenev, Alexander; Eom, Ki-Tae; Kang, Jong-Hoon; Hellstrom, Eric E.; Eom, Chang-Beom; Rua, Armando; Lysenko, Sergiy
- Issue Date
- May-2023
- Publisher
- SPRINGER HEIDELBERG
- Citation
- MRS ADVANCES, v.8, no.5, pp 161 - 166
- Pages
- 6
- Journal Title
- MRS ADVANCES
- Volume
- 8
- Number
- 5
- Start Page
- 161
- End Page
- 166
- ISSN
- 2731-5894
2059-8521
- Abstract
- The nonlinear optical dynamics and structural transformation of Co-doped BaFe2As2 superconducting films demonstrate complex behavior within a broad range of temperatures. The angle-resolved light scattering conoscopy reveals the temperature-dependent structural transformation of the optimally doped BaFe2As2. Photoinduced excited states dynamics demonstrate the instantaneous formation of the nonequilibrium state of quasiparticles with its subsequent multi-step thermalization within several picoseconds. These transient processes show noticeable temperature dependence below superconducting transition point T-c, where photoinduced dynamics correlate with the surface morphology.
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