Pole structure of the electronic self-energy with coexistence of charge order and superconductivity
M. Grandadam, C. Pépin
DOI 10.1103/PhysRevB.103.224507 · Physical Review B
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Abstract
We compare the pole structure of the electronic Green's function obtained by cluster dynamical mean-field theory to the results from the fractionalized pair density wave idea. In the superconducting phase, we can consider the system in a state with coexistence of superconducting and charge order. Writing the Green's function in a way analogous to the previously proposed “hidden-fermions” model [Sakai et al., Phys. Rev. Lett. 116, 057003 (2016)] leads to a similar pole structure for the self-energy. The fractionalization of the pair density wave order also describes the pseudogap phase as a superposition of superconducting and charge order fluctuations. Considering a phenomenological lifetime for the particle-particle and particle-hole pairs leads to an electronic spectral function that matches the numerical results.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2201 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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