135 citations · 362 across the 28 of their papers we have counts for
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Orbital-Selective Coexistence of Interlayer Spin-Singlet Formation and SDW Order with Anomalous Spin Reconfiguration in Bilayer Nickelate LaNiO Revealed by O-NMR
H. Lee, M. Yashima, M. Kakoi +7
The spin structure of the spin density wave (SDW) order in the bilayer nickelate LaNiO has been investigated using site-selective O-NMR measurements on the inner…
Fluctuation exchange study on the electron-hole asymmetry of the superconductivity across 1/3 filling in the trilayer Hubbard model
Yushi Yamada, Masataka Kakoi, Masayuki Ochi +1
We study within the fluctuation exchange approximation the trilayer Hubbard model where three layers of the Hubbard model are coupled by large interlayer hoppings so that the overl…
Superconductivity in doped spin multimer systems
Ritsuki Hirabayashi, Masataka Kakoi, Ryota Ueda +2
Binding energy, which quantifies pair formation, is a key factor in the emergence of superconductivity. Here, we show that even when multiple spins are complexly coupled, hole-dope…
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…
Theoretical study of superconductivity in freestanding infinite-layer nickelate membranes under pressure: mitigation of excess correlation enhances
Mahiru Seki, Reo Kono, Naotaka Tanaka +5
We theoretically investigate a freestanding membrane of infinite-layer nickelate NdSrNiO under pressure by constructing a seven-orbital effective model based…
Pairing properties of correlated three-leg ladders with strong interchain couplings near 1/3 filling
Yushi Yamada, Tatsuya Kaneko, Masataka Kakoi +2
We investigate the ground-state properties of correlated three-leg ladders near 1/3 filling. We apply the density-matrix renormalization group method to the three-leg t-J ladder wi…
Nonlinear phononics in LaFeAsO: Optical control of the crystal structure toward possible enhancement of superconductivity
Shu Kamiyama, Tatsuya Kaneko, Kazuhiko Kuroki +1
Nonlinear phononics provides a route to control crystal structures through light-induced phonon excitation. In this study, we apply nonlinear phononics to an iron-based superconduc…