File
Authors
Sakakibara, Hirofumi Department of Applied Mathematics and Physics, Tottori University / Computational Condensed Matter Physics Laboratory, RIKEN Researchers DB KAKEN
Kotani, Takao Department of Applied Mathematics and Physics, Tottori University Researchers DB KAKEN
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 La2CuO4 and HgBa2CuO4, 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 Tc observed in experiment for La2CuO4 and HgBa2CuO4. In addition, we give some analyses for the interaction terms in the model, especially comparisons with those of the constrained RPA.
Publisher
American Physical Society
Content Type
Journal Article
Link
ISSN・ISBN
24699950
NCID
AA11187113
Journal Title
Physical review. Third series. B, Condensed matter and materials physics
Volume
99
Start Page
195141
Published Date
2019-05-23
Publisher-DOI
Text Version
Publisher
Rights
©2019 American Physical Society
Citation
H. Sakakibara and T. Kotani. Model-mapped random phase approximation to evaluate superconductivity in the fluctuation exchange approximation from first-principles. Physical review. Third series. B, Condensed matter and materials physics. 2019, 99, 195141
Department
Faculty of Engineering/Graduate School of Engineering
Language
English