Collective d-wave exciton modes in the calculated Raman spectrum of Fe-based superconductors
D. J. Scalapino, T. P. Devereaux
DOI 10.1103/PhysRevB.80.140512 · Physical Review B
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Abstract
Calculations of the pairing interaction in multiband models of the Fe superconductors show that it is attractive in both the A1g (s-wave) and B1g (d-wave) channels. This raises the possibility that these materials may have collective excitonic modes. Here, assuming an s-wave ground state, we investigate the d-wave collective excitonic mode and its coupling to the Raman scattering.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Pb 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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