99 citations · 106 across the 2 of their papers we have counts for
5 papers
Predominant Magnetic States in Hubbard Model on Anisotropic Triangular Lattices
Tsutomu Watanabe, Hisatoshi Yokoyama, Yukio Tanaka +1
Using an optimization variational Monte Carlo method, we study the half-filled-band Hubbard model on anisotropic triangular lattices, as a continuation of the preceding study [J. P…
Superconductivity and a Mott Transition in a Hubbard Model on an Anisotropic Triangular Lattice
Tsutomu Watanabe, Hisatoshi Yokoyama, Yukio Tanaka +1
A half-filled-band Hubbard model on an anisotropic triangular lattice (t in two bond directions and t' in the other) is studied using an optimization variational Monte Carlo method…
Nonmonotonic d_{x^2-y^2}-Wave Superconductivity in Electron-Doped Cuprates Viewing from the Strong-Coupling Side
Tsutomu Watanabe, Takafumi Miyata, Hisatoshi Yokoyama +2
Applying a variational Monte Carlo method to a two-dimensional t-J model, we study the nonmonotonic d_{x^2-y^2}-wave superconductivity, observed by Raman scattering and ARPES exper…
Variational Monte Carlo studies of a t-J model on an anisotropic triangular lattice
Tsutomu Watanabe, Hisatoshi Yokoyama, Yukio Tanaka +2
With the insulating phase of κ-(BEDT-TTF)_2X in mind, we study a t-J model on an anisotropic triangular lattice, where the hopping integral is t' in one of the three directions, us…
Variational Monte Carlo Studies of Pairing Symmetry for the t-J Model on a Triangular Lattice
Tsutomu Watanabe, Hisatoshi Yokoyama, Yukio Tanaka +2
As a model of a novel superconductor Na_xCoO_2\cdotyH_2O, a single-band t-J model on a triangular lattice is studied, using a variational Monte Carlo method. We calculate the energ…