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Phonon anomalies inab-plane optical conductivity of high-Tcsuperconductors
1996
Physical Review B (Condensed Matter)
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It is shown that a correlation between the positions of the c-axis longitudinal optic (LO_c) phonons and "notch"-like structures in the a-b plane conductivity of high-T_c superconductors results from phonon-mediated interaction between electrons in different layers. It is found that the relative size of the notches depends on λ_ph(Ω_ph/γ_ph), where λ_ph, Ω_ph and γ_ph are the effective coupling strength, the frequency and the width of the optical phonon which is responsible for the notch. Even
doi:10.1103/physrevb.53.2273
pmid:9983728
fatcat:glztan62djht3lb4y3qm3tmmlu