793 citations · 10.5k across the 194 of their papers we have counts for
9 papers · 1 filter
Spin-1 chain doped with mobile S=1/2 fermions
Beat Ammon, Masatoshi Imada
We investigate doping of a two-orbital chain with mobile fermions as a valid model for . The S=1 spins are stabilized by strong, ferromagnetic (fm)…
Enhancement of Pairing Correlation and Spin Gap through Suppression of Single-Particle Dispersion in One-Dimensional Models
Masanori Kohno, Masatoshi Imada
We investigate the effects of suppression of single-particle dispersion near the Fermi level on the spin gap and the singlet-pairing correlation by using the exact diagonalization…
Superconductivity from Flat Dispersion Designed in Doped Mott Insulators
Masatoshi Imada, Masanori Kohno
Routes to enhance superconducting instability are explored for doped Mott insulators. With the help of insights for criticalities of metal-insulator transitions, geometrical design…
Single-Particle Pseudogap in Two-Dimensional Electron Systems
Shigeki Onoda, Masatoshi Imada
We investigate pseudogap phenomena in the 2D electron system. Based on the mode-mode coupling theory of antiferromagnetic (AFM) and -wave superconducting (SC) fluct…
Quantum Effects in Resistance-Shunted Josephson Junctions
Takeo Kato, Masatoshi Imada
Thermodynamics and transport properties of resistance-shunted Josephson junctions are studied theoretically in the tight-binding limit E_C/E_J<<1, where E_C and E_J are a charging…
Control of Superconducting Correlations in High-Tc Cuprates
Hirokazu Tsunetsugu, Masatoshi Imada
A strategy to enhance d-wave superconducting correlations is proposed based on our numerical study for correlated electron models for high-Tc cuprates. We observe that the pairing…