Masataka Kakoi

activity

20222026

most citedMultiband Metallic Ground State in Multilayered Nickelates La

_{3}

_{2}

_{7}

and La

_{4}

_{3}

_{10}

Probed by

^{139}

La-NMR at Ambient Pressure

73 citations · 140 across the 13 of their papers we have counts for

collaborators

14 papers

cs.CL2026

MolLean: A Process-Verifiable Language for Chemical Reasoning

Jiatong Li, Yatao Bian

Chemical chain-of-thought can contain hallucinated structural and property claims. We thereby introduce MolLean, a process-verifiable language that grounds chemical reasoning in an…

cond-mat.str-el2026

Orbital-Selective Coexistence of Interlayer Spin-Singlet Formation and SDW Order with Anomalous Spin Reconfiguration in Bilayer Nickelate La $_{3}$ Ni $_{2}$ O $_{7}$ Revealed by $^{17}$ O-NMR

H. Lee, M. Yashima, M. Kakoi +7

The spin structure of the spin density wave (SDW) order in the bilayer nickelate La $_{3}$ Ni $_{2}$ O $_{7}$ has been investigated using site-selective $^{17}$ O-NMR measurements on the inner…

cond-mat.str-el2026

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…

cond-mat.supr-con2026

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…

cond-mat.supr-con2026

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…

cond-mat.dis-nn2026

Mesoscopic scattering dynamics under generic uniform SU(2) gauge fields: Spin-momentum relaxation and coherent backscattering

Masataka Kakoi, Christian Miniatura, Keith Slevin

We investigate the time- and momentum-resolved dynamics of matter waves undergoing elastic scattering from a disordered potential in the presence of spatially uniform SU(2) gauge f…

cond-mat.supr-con2025

Spin-fluctuation-mediated chiral $d + i d^{'}$ -wave superconductivity in the $α$ - $T_{3}$ lattice with an incipient flat band

Masataka Kakoi, Kazuhiko Kuroki

We study anisotropic superconductivity in the nearly quarter-filled $α$ - $T_{3}$ lattice. We analyze an extended Hubbard model with off-site attractive interactions within t…

cond-mat.quant-gas2025★ 1 cited

Coherent transport in two-dimensional disordered potentials under spatially uniform SU(2) gauge fields

Masataka Kakoi, Christian Miniatura, Keith Slevin

We study interference effects in the dynamics of a spin- $1/2$ particle propagating in two dimensions in a disordered potential and subject to a generalized spin-orbit coupling. Wit…

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★ 17 cited

Microscopic evidence for spin-spinless stripe order with reduced Ni moments within $ab$ plane for bilayer nickelate La $_{3}$ Ni $_{2}$ O $_{7}$ probed by $^{139}$ La-NQR

Mitsuharu Yashima, Nina Seto, Yujiro Oshita +4

The intrinsic electronic properties of La $_{3}$ Ni $_{2}$ O $_{7}$ have been selectively investigated by nuclear quadrupole resonance (NQR) at the La(2) site outside the NiO $_{2}$ bilayers.…

cond-mat.str-el2023★ 73 cited

Multiband Metallic Ground State in Multilayered Nickelates La $_{3}$ Ni $_{2}$ O $_{7}$ and La $_{4}$ Ni $_{3}$ O $_{10}$ Probed by $^{139}$ La-NMR at Ambient Pressure

Masataka Kakoi, Takashi Oi, Yujiro Ohshita +9

We report a $^{139}$ La-NMR study of polycrystalline samples of multi( $n$ )-layered nickelates, La $_{3}$ Ni $_{2}$ O $_{7 - δ}$ ( $n = 2$ ) and La $_{4}$ Ni $_{3}$ O $_{10 - δ}$ ( $n = 3$ ), at ambient pressure.…

cond-mat.supr-con2023★ 35 cited

Pair correlations of the hybridized orbitals in a ladder model for the bilayer nickelate La $_{3}$ Ni $_{2}$ O $_{7}$

Masataka Kakoi, Tatsuya Kaneko, Hirofumi Sakakibara +2

To clarify the nature of high-temperature superconductivity in the bilayer nickelate La $_{3}$ Ni $_{2}$ O $_{7}$ under pressure, we investigate, using the density-matrix renormalization grou…

cond-mat.quant-gas2023★ 4 cited

Time evolution of coherent wave propagation and spin relaxation in spin-orbit coupled systems

Masataka Kakoi, Keith Slevin

We investigate, both numerically and analytically, the time evolution of a particle in an initial plane wave state as it is subject to elastic scattering in a two-dimensional disor…

cond-mat.dis-nn2022★ 2 cited

A stochastic method to compute the $L^{2}$ localisation landscape

Masataka Kakoi, Keith Slevin

The $L^{2}$ localisation landscape of L. Herviou and J. H. Bardarson is a generalisation of the localisation landscape of M. Filoche and S. Mayboroda. We propose a stochastic method…

MolLean: A Process-Verifiable Language for Chemical Reasoning

Orbital-Selective Coexistence of Interlayer Spin-Singlet Formation and SDW Order with Anomalous Spin Reconfiguration in Bilayer Nickelate La3​Ni2​O7​ Revealed by 17O-NMR

Fluctuation exchange study on the electron-hole asymmetry of the superconductivity across 1/3 filling in the trilayer Hubbard model

Superconductivity in doped spin multimer systems

Pairing properties of correlated three-leg ladders with strong interchain couplings near 1/3 filling

Mesoscopic scattering dynamics under generic uniform SU(2) gauge fields: Spin-momentum relaxation and coherent backscattering

Spin-fluctuation-mediated chiral d+id′-wave superconductivity in the α-T3​ lattice with an incipient flat band

Coherent transport in two-dimensional disordered potentials under spatially uniform SU(2) gauge fields

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

Microscopic evidence for spin-spinless stripe order with reduced Ni moments within ab plane for bilayer nickelate La3​Ni2​O7​ probed by 139La-NQR

Multiband Metallic Ground State in Multilayered Nickelates La3​Ni2​O7​ and La4​Ni3​O10​ Probed by 139La-NMR at Ambient Pressure

Pair correlations of the hybridized orbitals in a ladder model for the bilayer nickelate La3​Ni2​O7​