Theory of isotope dependence of photoemission spectra of high-Tc superconducting cuprates
G. Seibold, M. Grilli
DOI 10.1103/PhysRevB.72.104519 · Physical Review B
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Abstract
We investigate the effect of isotope substitution on the electronic spectral functions within a model where the charge carriers are coupled to bosonic charge-order (CO) fluctuations centered around some mean frequency ω0 and with enhanced scattering at wave vector qc. It is shown that the mass dependence of ω0 is not sufficient to account, especially at high energies, for the dispersion shifts experimentally observed in an optimally doped superconducting cuprate. Our analysis rather suggests that isotope substitution induces a change of the spatial CO correlations which gives a good account of the experimental data.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2CaCu2O8-δ 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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