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9 papers · 2 filters
Layer dependent band dispersion and correlations using tunable Soft X-ray ARPES
N. Kamakura, Y. Takata, T. Tokushima +4
Soft X-ray Angle-Resolved Photoemission Spectroscopy is applied to study in-plane band dispersions of Nickel as a function of probing depth. Photon energies between 190 and 780 eV…
Correlation Amplitudes for the spin-1/2 XXZ chain in a magnetic field
T. Hikihara, A. Furusaki
We present accurate numerical estimates for the correlation amplitudes of leading and main subleading terms of the two- and four-spin correlation functions in the one-dimensional s…
Order N Monte Carlo Algorithm for Fermion Systems Coupled with Fluctuating Adiabatical Fields
Nobuo Furukawa, Yukitoshi Motome
An improved algorithm is proposed for Monte Carlo methods to study fermion systems interacting with adiabatical fields. To obtain a weight for each Monte Carlo sample with a fixed…
Ground-state phase diagram of the one-dimensional half-filled extended Hubbard model
M. Tsuchiizu, A. Furusaki
We revisit the ground-state phase diagram of the one-dimensional half-filled extended Hubbard model with on-site (U) and nearest-neighbor (V) repulsive interactions. In the first h…
Monte Carlo Study of Doping Change and Disorder Effect on Double Exchange Ferromagnetism
Yukitoshi Motome, Nobuo Furukawa
Phase diagram and critical properties are studied for three-dimensional double exchange model with and without quenched disorder. Employing the Monte Carlo method and the systemati…
Universality Class of Ferromagnetic Transition in Three-Dimensional Double-Exchange System - O(N) Monte Carlo Study -
Yukitoshi Motome, Nobuo Furukawa
Curie temperature and exponents are studied for the three-dimensional double-exchange model. Applying the O(N) Monte Carlo algorithm, we perform systematic finite-size scaling anal…