Calculation of overdamped c-axis charge dynamics and the coupling to polar phonons in cuprate superconductors
W. Meevasana, T. P. Devereaux, N. Nagaosa, Z.-X. Shen, J. Zaanen
DOI 10.1103/PhysRevB.74.174524 · Physical Review B
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Abstract
In our recent paper we presented empirical evidence suggesting that electrons in cuprate superconductors are strongly coupled to unscreened c-axis polar phonons. In the overdoped regime the c axis metallizes and we present here simple theoretical arguments demonstrating that the observed effect of the metallic c-axis screening on the polar electron-phonon coupling is consistent with a strongly overdamped c-axis charge dynamics in the optimally doped system, becoming less dissipative in the overdoped regime.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2CuO6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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