229 citations · 1.1k across the 29 of their papers we have counts for
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Identifying the multiferroic phase of doped CuFeO_2 using inelastic neutron scattering
J. T. Haraldsen, F. Ye, R. S. Fishman +4
We report inelastic neutron scattering measurements that provide a distinct dynamical "fingerprint" for the multiferroic ground state of 3.5% Ga-doped CuFeO_2. The complex ground s…
Quantum Monte Carlo study of the pairing symmetry competition in the Hubbard model
Kazuhiko Kuroki, Yukio Tanaka, Takashi Kimura +1
To shed light into the pairing mechanism of possible spin-triplet superconductors (TMTSF)X and SrRuO, we study the competition among various spin singlet and triplet pa…
High temperature superconductivity in dimer array systems
Kazuhiko Kuroki, Takashi Kimura, Ryotaro Arita
Superconductivity in the Hubbard model is studied on a series of lattices in which dimers are coupled in various types of arrays. Using fluctuation exchange method and solving the…
d_{x^2-y^2}- vs. d_{xy}- like pairings in organic superconductors κ-(BEDT-TTF)_2 X
Kazuhiko Kuroki, Takashi Kimura, Ryotaro Arita +2
Pairing symmetry in -(BEDT-TTF)X is re-examined by applying fluctuation exchange method to the Hubbard model on the original four band lattice for the first time. Our study…
Flat-band ferromagnetism in quantum dot superlattices
Hiroyuki Tamura, Kenji Shiraishi, Takashi Kimura +1
Possibility of flat-band ferromagnetism in quantum dot arrays is theoretically discussed. By using a quantum dot as a building block, quantum dot superlattices are possible. We con…
Magnetic field effects on two-dimensional Kagome lattices
Takashi Kimura, Hiroyuki Tamura, Kenji Shiraishi +1
Magnetic field effects on single-particle energy bands (Hofstadter butterfly), Hall conductance, flat-band ferromagnetism, and magnetoresistance of two-dimensional Kagome lattices…