Phonon anomalies in ab-plane optical conductivity of high-Tc superconductors
Vladimir N. Kostur
DOI 10.1103/PhysRevB.53.2273 · Physical Review B
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Abstract
It is shown that a correlation between the positions of the c-axis longitudinal optic (LOc) phonons and ‘‘notch’’-like structures in the ab-plane conductivity of high-Tc superconductors results from phonon-mediated interaction between electrons in different layers. It is found that the relative size of the notches depends on λph(Ωph/γph), where λph, Ωph, and γph are the effective coupling strength, the frequency, and the width of the optical phonon which is responsible for the notch. Even for λph≊0.01 the effect can be large if the phonon is very sharp. © 1996 The American Physical Society.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Pb2Sr2DyCu3O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 100 | Pressure not reported | onset |
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