Collective modes and the superconducting-state spectral function of Bi2Sr2CaCu2O8
M. R. Norman, H. Ding
DOI 10.1103/PhysRevB.57.R11089 · Physical Review B
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Abstract
Photoemission spectra of the high-temperature superconductor Bi2Sr2CaCu2O8 near (π,0) show a dramatic change when cooling below Tc: the broad peak in the normal state turns into a sharp low-energy peak followed by a higher binding-energy hump. Recent experiments find that this low-energy peak persists over a significant range in momentum space. We show in this paper that these data are well described by a simple model of electrons interacting with a collective mode that appears only below Tc.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2CaCu2O8 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. | — | Pressure not reported | unknown |
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