96 citations · 346 across the 7 of their papers we have counts for
7 papers
Unrestricted Hartree-Fock Analysis of SrCaRuO
Shigeru Koikegami, Takashi Yanagisawa, Soh Koike
We investigated the electronic and magnetic structure of SrCaRuO () on the basis of the double-layered three-dimensional multiband Hubbard mode…
Uniaxial-Pressure induced Ferromagnetism of Enhanced Paramagnetic Sr3Ru2O7
Shin-Ichi Ikeda, Naoki Shirakawa, Takashi Yanagisawa +5
We report a uniaxial pressure-dependence of magnetism in layered perovskite strontium ruthenate Sr3Ru2O7. By applying a relatively small uniaxial pressure, greater than 0.1 GPa nor…
Lattice distortions, incommensurability, and stripes in the electric model for high-Tc cuprates
Takashi Yanagisawa, Mitake Miyazaki, Shigeru Koikegami +2
Striped superconductivity with lattice distortions is investigated based on the three-band Hubbard model for high-Tc cuprates. A stable inhomogeneous striped state is determined in…
Ground state of the three-band Hubbard model
Takashi Yanagisawa, Soh Koike, Kunihiko Yamaji
The ground state of the two-dimensional three-band Hubbard model in oxide superconductors is investigated by using the variational Monte Carlo method. The Gutzwiller-projected BCS…
Off-diagonal Wave Function Monte Carlo Studies of Hubbard Model I
Takashi Yanagisawa, Soh Koike, Kunihiko Yamaji
We propose a Monte Carlo method, which is a hybrid method of the quantum Monte Carlo method and variational Monte Carlo theory, to study the Hubbard model. The theory is based on t…
Stripe formation in high-Tc superconductors
Takashi Yanagisawa, Soh Koike, Mitake Miyazaki +1
The non-uniform ground state of the two-dimensional three-band Hubbard model for the oxide high-Tc superconductors is investigated using a variational Monte Carlo method. We examin…