62 citations · 125 across the 13 of their papers we have counts for
14 papers
Chiral Antiferromagnetism from Momentum-Space Resonance in a 2D Semiconductor
R. Okuma, T. Ikenobe, Y. Fujisawa +28
Understanding the principles governing the emergence of chiral quantum phases is a fundamental challenge, not only for uncovering new mechanisms of quantum-state formation but also…
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…
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…
Correlation-driven branch in doped excitonic insulators
Tatsuya Kaneko, Ryota Ueda, Satoshi Ejima
We investigate the spectral properties of doped one-dimensional excitonic insulators. Employing matrix-product-state-based methods, we compute the single-particle spectrum and opti…
- model for strongly correlated two-orbital systems: Application to bilayer nickelate superconductors
Tatsuya Kaneko, Masataka Kakoi, Kazuhiko Kuroki
We derive a - model applicable to strongly correlated two-orbital systems including bilayer nickelate superconductors. Using the Schrieffer-Wolff transformation, we exclude t…
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…
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,…
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 LaNiO occurs when the interlayer Ni-O-Ni bond angle becomes straight under pressure, suggesting a strong relationship between…
Floquet engineering of effective pairing interactions in a doped band insulator
Yugo Takahashi, Hideo Miyamoto, Kazuhiko Kuroki +1
We investigate the pairing state in a doped band insulator under a periodic driving field. We employ a correlated fermionic model on a honeycomb lattice, in which pairing glue is o…
Ground-State Properties of the - Model for the CuO Double-Chain Structure
Tatsuya Kaneko, Satoshi Ejima, Koudai Sugimoto +1
We investigate the ground-state properties of a correlated model for the double-chain structure in cuprates. We consider the - model, in which the nearest-neighbor spin inter…
Pair correlations of the hybridized orbitals in a ladder model for the bilayer nickelate LaNiO
Masataka Kakoi, Tatsuya Kaneko, Hirofumi Sakakibara +2
To clarify the nature of high-temperature superconductivity in the bilayer nickelate LaNiO under pressure, we investigate, using the density-matrix renormalization grou…
Photoinduced -pairing correlation in the Hubbard ladder
Ryota Ueda, Kazuhiko Kuroki, Tatsuya Kaneko
We investigate the staggered correlation of the on-site pairs, the so-called -pairing correlation, induced by pump electric fields in the Hubbard model on the ladder lattice. Em…
Pair correlations in the two-orbital Hubbard ladder: Implications on superconductivity in the bilayer nickelate LaNiO
Tatsuya Kaneko, Hirofumi Sakakibara, Masayuki Ochi +1
Motivated by high-temperature superconductivity in pressurized LaNiO, we investigate the pair correlations in the two-orbital Hubbard ladder, which consists of the near…