4 papers
Interplay of Correlation, Randomness and Dimensionality Effects in Weakly-Coupled Half-Filled Random Hubbard Chains
Jun-ichiro Kishine, Kenji Yonemitsu
We study interplay of electronic correlation, randomness and dimensionality effects in half-filled random Hubbard chains weakly coupled via an interchain one-particle hopping. Base…
Anisotropic suppression of quasiparticle weight in two-dimensional electron system with partially flat Fermi surface: two-loop renormalization-group analysis
Jun-ichiro Kishine, Kenji Yonemitsu
Two-loop renormalization-group analysis for a two-dimensional electron system with a partially flat Fermi surface has been carried out. We found that, {\it irrespective of pairing…
Effects of dimerization and interchain one-particle hopping in a weakly coupled dimerized chain system at quarter filling
Jun-ichiro Kishine, Kenji Yonemitsu
Effects of the intrachain dimerization and the interchain one-particle hopping, , in a quasi-one-dimensional dimerized chain system at quarter filling have been studied, bas…
Crossover from Antiferromagnetic Phase to Fermiology Regime in a Weakly Coupled Half-Filled Chain System
Jun-ichiro Kishine, Kenji Yonemitsu
Effects of the electron-electron umklapp process on dimensional crossovers caused by the interchain one-particle hopping, , in a weakly-coupled half-filled chain system…