H. Sakakibara

activity

20242026

collaborators

7 papers

cond-mat.supr-con2026

Theoretical study of superconductivity in freestanding infinite-layer nickelate membranes under pressure: mitigation of excess correlation enhances $T_{c}$

Mahiru Seki, Reo Kono, Naotaka Tanaka +5

We theoretically investigate a freestanding membrane of infinite-layer nickelate Nd $_{0.85}$ Sr $_{0.15}$ NiO $_{2}$ under pressure by constructing a seven-orbital effective model based…

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.supr-con2026

Hierarchical structure of primary and hybridization-induced superconducting correlations in bilayer nickelates

Hiroshi Watanabe, Hirofumi Sakakibara, Kazuhiko Kuroki

High-pressure superconductivity in the bilayer nickelate La $_{3}$ Ni $_{2}$ O $_{7}$ , with a transition temperature approaching 80 K, has stimulated intense debate regarding its microscopic…

cond-mat.supr-con2026

Theoretical proposal of superconductivity in hole-doped reduced bilayer nickelate La3Ni2O6: a manifestation of orbital-space bilayer model with incipient bands

Shu Kamiyama, Reo Kohno, Yuto Hoshi +4

A correspondence exists between the multi-orbital Hubbard model and the bilayer Hubbard model, in which superconductivity is optimized in an incipient-band regime in both cases. In…

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.supr-con2025

Theoretical study of the crystal structure of the bilayer nickel oxychloride Sr $_{3}$ Ni $_{2}$ O $_{5}$ Cl $_{2}$ and analysis of possible unconventional superconductivity

Masayuki Ochi, Hirofumi Sakakibara, Hidetomo Usui +1

The discovery of superconductivity under high pressure with $T_{c}$ exceeding 80 K in a bilayer nickelate La $_{3}$ Ni $_{2}$ O $_{7}$ has led to a strong desire to realize similar high $T_{c}$ p…

Theoretical study of superconductivity in freestanding infinite-layer nickelate membranes under pressure: mitigation of excess correlation enhances Tc​

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

Hierarchical structure of primary and hybridization-induced superconducting correlations in bilayer nickelates

Theoretical proposal of superconductivity in hole-doped reduced bilayer nickelate La3Ni2O6: a manifestation of orbital-space bilayer model with incipient bands

Theoretical study on the possibility of high Tc​ s±-wave superconductivity in the heavily hole-doped infinite layer nickelates

Theoretical study of the crystal structure of the bilayer nickel oxychloride Sr3​Ni2​O5​Cl2​ and analysis of possible unconventional superconductivity

Theoretical study of superconductivity in freestanding infinite-layer nickelate membranes under pressure: mitigation of excess correlation enhances $T_{c}$

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

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

Theoretical study of the crystal structure of the bilayer nickel oxychloride Sr $_{3}$ Ni $_{2}$ O $_{5}$ Cl $_{2}$ and analysis of possible unconventional superconductivity