Ryota Mizuno

collaborators

5 papers

cond-mat.str-el2026

Study on the validity of IPT+parquet method as an impurity solver in DMFT focusing on orbital fluctuations

Aira Yamada, Ryota Mizuno, Masayuki Ochi +2

A breakdown of calculations with exact impurity solvers in the dynamical mean field theory in multiband systems easily occurs due to the expensive numerical cost. To overcome this…

cond-mat.supr-con2026

Theoretical study on ambient pressure superconductivity in La $_{3}$ Ni $_{2}$ O $_{7}$ thin films : structural analysis, model construction, and robustness of $s \pm$ -wave pairing

Kensei Ushio, Shu Kamiyama, Yuto Hoshi +4

We theoretically study ambient pressure superconductivity in thin films of La $_{3}$ Ni $_{2}$ O $_{7}$ . We construct model Hamiltonians adopting the crystal structure theoretically determine…

cond-mat.str-el2026

Electronic band structure, phonon dispersion, and magnetic triple-q state in GdGaI

Tatsuya Kaneko, Ryota Mizuno, Shu Kamiyama +2

We theoretically investigate the physical properties of the magnetic van der Waals material GdGaI. Using first-principles calculations, we compute the phonon dispersion of GdGaI an…

cond-mat.supr-con2025

Theoretical study on the possibility of high $T_{c}$ s $\pm$ -wave superconductivity in the heavily hole-doped infinite layer nickelates

Hirofumi Sakakibara, Ryota Mizuno, Masayuki Ochi +2

We theoretically propose a possibility of realizing high $T_{c}$ superconductivity having $s \pm$ -wave symmetry in the heavily hole-doped infinite layer nickelates La $_{1 - x}$ Sr $_{x}$ NiO…

cond-mat.str-el2025

Improvement of the simplification method for the local two-particle full-vertex towards precise frequency behavior

Ryota Mizuno, Kazuhiko Kuroki, Masayuki Ochi

Estimating the local two-particle vertex functions, which are crucial for capturing the spatial fluctuation of the effective field beyond the single-site DMFT, is still challenging…