Femtosecond optical detection of quasiparticle dynamics in high-Tc YBa2Cu3O7- 8 superconducting thin films

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Publication Type Journal Article
School or College College of Science
Department Physics
Creator Symko, Orest George; Vardeny, Zeev Valentine
Other Author Han, S. G.; Wong, K. S.; Koren, G.
Title Femtosecond optical detection of quasiparticle dynamics in high-Tc YBa2Cu3O7- 8 superconducting thin films
Date 1990-11
Description 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 pairs which is completed within 5 psec. In contrast, nonsuperconducting epitaxial films such as PrBa2Cu3O7 and YBa2Cu3O6 show regular picosecond electronic response.
Type Text
Publisher American Physical Society
Journal Title Physical Review Letters
Volume 65
Issue 21
First Page 2708
Last Page 2711
DOI 10.1103/PhysRevLett.65.2708
citatation_issn 0031-9007
Subject Quasiparticle dynamics; High-Tc; Femtosecond dynamics; Photogenerated quasiparticles
Subject LCSH Quasiparticles (Physics); Superconductors; Thin films -- Electric properties
Language eng
Bibliographic Citation Han, S. G., Vardeny, Z. V., Wong, K. S., Symko, O. G., & Koren, G. (1990). Femtosecond optical detection of quasiparticle dynamics in high-Tc YBa2Cu3O7- 8 superconducting thin films. Physical Review Letters, 65(21), 2708-11.
Rights Management (c) American Physical Society http://dx.doi.org/10.1103/PhysRevLett.65.2708
Format Medium application/pdf
Format Extent 378,569 bytes
Identifier ir-main,11127
ARK ark:/87278/s6tt582b
Setname ir_uspace
ID 702910
Reference URL https://collections.lib.utah.edu/ark:/87278/s6tt582b
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