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Title: Dynamical conductivity of an MBE-grown La1.84Sr0.16CuO4 thin film at frequencies from 5 to 36 cm(-1)
Authors: Gorshunov, BP ×
Pronin, AV
Volkov, AA
Somal, HS
van der Marel, D
Feenstra, BJ
Jaccard, Y
Locquet, Jean-Pierre #
Issue Date: 1998
Publisher: ELSEVIER SCIENCE BV
Series Title: Physica. B, Condensed matter vol:244 pages:15-21
Conference: date:Russian Acad Sci, Inst Gen Phys, Moscow 117942, Russia; Univ Groningen, NL-9747 AG Groningen, Netherlands; Univ Neuchatel, Inst Phys, CH-2000 Neuchatel, Switzerland; IBM Corp, Div Res, Zurich Res Lab, CH-8803 Ruschlikon, Switzerland
Abstract: We present the first wide-band (5-400 cm(-1)) measurements of the dynamical conductivity and the dielectric permittivity spectra of La2-xSrxCuO4 (x approximate to 0.16). A narrow Drude-like band is observed in the spectra, which is consistent with a d-wave pairing state. We determine the plasma frequency, scattering rate, and mean free path of the unpaired charge carriers responsible for this band. For the first time, "coherence peak"-like behavior is observed in the temperature dependence of the submillimeter conductivity of La2-xSrxCuO4, associated with the temperature evolution of the band in the superconducting state. Published by Elsevier Science B.V.
ISSN: 0921-4526
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
× corresponding author
# (joint) last author

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