Abstract
We have applied the model-mapped random phase approximation (RPA) [H. Sakakibara et al., J. Phys. Soc. Jpn. 86, 044714 (2017)] to the cuprate superconductors and , resulting in two-orbital Hubbard models. All the model parameters are determined based on first-principles calculations. For the model Hamiltonians, we perform fluctuation exchange calculation. Results explain relative height of observed in experiment for and . In addition, we give some analyses for the interaction terms in the model, especially comparisons with those of the constrained RPA.
- Received 10 December 2018
- Revised 12 March 2019
DOI:https://doi.org/10.1103/PhysRevB.99.195141
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