Determination of the pairing state in iron-based superconductors through neutron scattering
Yuki Nagai, Kazuhiko Kuroki
DOI 10.1103/PhysRevB.83.220516 · Physical Review B
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Abstract
We calculate the spin susceptibility in the s± and s++ superconducting states of the iron pnictides using the effective five-orbital model and considering the quasiparticle damping. For the experimentally evaluated magnitude of the quasiparticle damping and the superconducting gap, the results at the wave vector ≃(π,0) show that the s± state is more consistent with the neutron scattering experiments, while for larger quasiparticle damping and the superconducting gap, the s++ state can be more consistent. To distinguish between two cases that reproduce the experiments at the wave vector ≃(π,0), we propose to investigate experimentally the wave vector ≃(π,π).
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| LaFeAsO 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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