K. Kuroki

activity

20162026

most citedTheoretical analysis on the possibility of superconductivity in a trilayer Ruddlesden-Popper nickelate La

_{4}

_{3}

_{10}

under pressure and its experimental examination: comparison with La

_{3}

_{2}

_{7}

135 citations · 362 across the 28 of their papers we have counts for

collaborators

Showing 2025Show all

9 papers · 1 filter

cond-mat.supr-con2025

Finite-Temperature $ab initio$ Structural Optimization of the Bilayer Nickelate Superconductor La $_{3}$ Ni $_{2}$ O $_{7}$

Ryoma Asai, Ryotaro Arita, Takumi Chida +3

We develop a first-principles framework for finite-temperature structural optimization that incorporates vibrational contributions to the free energy through anharmonic phonon theo…

cond-mat.supr-con2025

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-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…

cond-mat.str-el2025★ 8 cited

$t$ - $J$ model for strongly correlated two-orbital systems: Application to bilayer nickelate superconductors

Tatsuya Kaneko, Masataka Kakoi, Kazuhiko Kuroki

We derive a $t$ - $J$ model applicable to strongly correlated two-orbital systems including bilayer nickelate superconductors. Using the Schrieffer-Wolff transformation, we exclude t…

cond-mat.str-el2025★ 1 cited

Doublon-Holon Pairing State in Photodoped Mott Insulators

Ryota Ueda, Madhumita Sarkar, Zala Lenarčič +3

We demonstrate the existence of an unconventional pairing state in photodoped Mott insulators on ladder and quasi-two-dimensional geometries, characterized by quasi-long-range doub…

cond-mat.mtrl-sci2025

Possible high thermoelectric power factor in alkali-metal-intercalated BC $_{3}$ : anisotropic multiple valleys originating from the van Hove singularity of graphene

Ryutaro Enami, Kazuhiko Kuroki, Masayuki Ochi

We theoretically investigate the electronic structure of monolayer BC $_{3}$ and find that it hosts anisotropic multiple valleys originating from the splitting of the van Hove singula…

cond-mat.mtrl-sci2025★ 1 cited

First-principles Study of Metallic-atom Diffusion in Thermoelectric Material Mg $_{3}$ Sb $_{2}$

Masayuki Ochi, Kazutaka Nishiguchi, Chul-Ho Lee +1

Mg $_{3}$ Sb $_{2}$ is a promising thermoelectric material that consists of nontoxic and earth-abundant elements. We investigate metallic-atom diffusion in Mg $_{3}$ Sb $_{2}$ by calculating the…

cond-mat.str-el2025★ 6 cited

Nonreciprocal charge transport in polar Dirac metals with tunable spin-valley coupling

M. Kondo, M. Kimata, M. Ochi +7

Nonreciprocal charge transport in solids, where resistance is different between rightward and leftward currents, is a key function of rectifying devices in the modern electronics,…

cond-mat.supr-con2025★ 3 cited

Optical control of the crystal structure in the bilayer nickelate superconductor La3Ni2O7 via nonlinear phononics

Shu Kamiyama, Tatsuya Kaneko, Kazuhiko Kuroki +1

Superconductivity in the bilayer nickelate La $_{3}$ Ni $_{2}$ O $_{7}$ occurs when the interlayer Ni-O-Ni bond angle becomes straight under pressure, suggesting a strong relationship between…

Finite-Temperature ab initio Structural Optimization of the Bilayer Nickelate Superconductor La3​Ni2​O7​

Theoretical study on ambient pressure superconductivity in La3​Ni2​O7​ thin films : structural analysis, model construction, and robustness of s±-wave pairing