76 citations · 432 across the 17 of their papers we have counts for
17 papers
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 LaNiO, with a transition temperature approaching 80 K, has stimulated intense debate regarding its microscopic…
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…
Spin-fluctuation-mediated chiral -wave superconductivity in the - lattice with an incipient flat band
Masataka Kakoi, Kazuhiko Kuroki
We study anisotropic superconductivity in the nearly quarter-filled - lattice. We analyze an extended Hubbard model with off-site attractive interactions within t…
Model construction and superconductivity analysis of organic conductors β-(BDA-TTP)_2MF_6 (M=P, As, Sb, Ta) based on first principles band calculation
Hirohito Aizawa, Kazuhiko Kuroki, Syuma Yasuzuka +1
We perform a first principles band calculation for a group of quasi-two-dimensional organic conductors β-(BDA-TTP)2MF6 (M=P, As, Sb, Ta). The ab-initio calculation shows that the d…
Thermoelectric figure of merit of tau-type conductors of several donors
H. Yoshino, H. Aizawa, K. Kuroki +3
Dimensionless thermoelectric figure of merit is investigated for two-dimensional organic conductors , -(EDT-S,S-DMEDT-TTF)_2(AuI_2)_{1…
Josephson effect in quasi one-dimensional unconventional superconductors
Y. Asano, Y. Tanaka, Y. Tanuma +2
Josephson effect in junctions of quasi one-dimensional triangular lattice superconductors is discussed, where the theoretical model corresponds to organic superconductors (TMTSF)_2…
Electronic Structure of B-2 and States in MgB, AlB and ZrB Single Crystals
J. Nakamura, S. Nasubida, E. Kabasawa +18
The effect of electron correlation (EC) on the electronic structure in MgB, AlB and ZrB, is studied by examining the partial density of states (PDOS) of B-2 and $pπ…
Superconductivity in repulsive electron systems having three-dimensional disconnected Fermi surfaces
S. Onari, R. Arita, K. Kuroki +1
The idea of raising Tc in the spin-fluctuation mediated superconductivity on disconnected Fermi surfaces with the gap function changing sign across but not within the Fermi pockets…
Magnetotunneling spectroscopy as a probe for pairing symmetry determination in quasi-2D anisotropic superconductors
Y. Tanuma, Y. Tanaka, K. Kuroki +1
As a probe to determine the pairing symmetry of quasi-two-dimensional anisotropic superconductors, we propose tunneling spectroscopy in the presence of magnetic field, where the ma…
Theory of magnetotunneling spectroscopy in spin triplet p-wave superconductors
Y. Tanaka, Y. Tanuma, K. Kuroki +1
We study the influence of a magnetic field on the zero-bias conductance peak (ZBCP) due to zero-energy Andreev bound state (ZES) in normal metal / unconventional superconductor…
Tomography of pairing symmetry from magnetotunneling spectroscopy -- a case study for quasi-1D organic superconductors
Y. Tanuma, K. Kuroki, Y. Tanaka +3
We propose that anisotropic -, -, or -wave pairing symmetries can be distinguished from a tunneling spectroscopy in the presence of magnetic fields, which is exemplified h…
Electronic structure of periodic curved surfaces -- topological band structure
H. Aoki, M. Koshino, D. Takeda +1
Electronic band structure for electrons bound on periodic minimal surfaces is differential-geometrically formulated and numerically calculated. We focus on minimal surfaces because…
Soft x-ray spectroscopy experiments on the near K-edge of B in MB2 (M=Mg, Al, Ta, and Nb)
J. Nakamura, N. Yamada, K. Kuroki +4
Soft X-ray absorption and emission measurements are performed for the K- edge of B in MB (M=Mg, Al, Ta and Nb). Unique feature of MgB with a high density of B 2-…
Theoretical study of quasiparticle states near the surface of a quasi-one-dimensional organic superconductor
Y. Tanuma, K. Kuroki, Y. Tanaka +1
Quasiparticle states near the surface of a quasi-one-dimensional organic superconductor are studied based on an extended Hubbard model on a quasi-one dimensio…
Quantum Monte Carlo study of the pairing correlation in the Hubbard ladder
Kazuhiko Kuroki, Takashi Kimura, Hideo Aoki
An extensive Quantum Monte Carlo calculation is performed for the two-leg Hubbard ladder model to clarify whether the singlet pairing correlation decays slowly, which is predicted…
Correlation functions in the three-chain Hubbard ladder
Takashi Kimura, Kazuhiko Kuroki, Hideo Aoki
In order to check whether odd-numbered Tomonaga-Luttinger ladders are dominated by antiferromagnetic correlations associated with gapless spin excitations, correlation functions of…
Generation of spin-polarized currents in Zeeman-split Tomonaga-Luttinger models
Takashi Kimura, Kazuhiko Kuroki, Hideo Aoki
In a magnetic field an interacting electron gas in one dimension may be described as a Tomonaga-Luttinger model comprising two components with different Fermi velocities due to the…