1 citations · 1 across the 1 of their papers we have counts for
4 papers
Superconductivity and Instabilities in the t-t' Hubbard Model
F. Wegner, V. Hankevych
We present a stability analysis of the 2D t-t' Hubbard model on a square lattice for t' = -t/6. We find possible phases of the model (d-wave Pomeranchuk and superconducting states,…
Pressure-Temperature Phase Diagram of Generalized Hubbard Model with Correlated Hopping at Half-Filling
Leonid Didukh, Vasyl Hankevych
In the present paper pressure-temperature phase diagram of a generalized Hubbard model with correlated hopping in a paramagnetic state at half-filling is determined by means of the…
On Chemical Potential of a Generalized Hubbard Model with Correlated Hopping at Half-Filling
Leonid Didukh, Vasyl Hankevych
In the present paper we study chemical potential of a generalized Hubbard model with correlated hopping at half-filling using a generalized mean-field approximation. For the specia…
Temperature-Induced Metal-Insulator Transition in a Narrow-Band Model with Non-Equivalent Hubbard Subbands at Half-Filling
Leonid Didukh, Vasyl Hankevych
In the previous papers (Journ. of Phys. Stud. 2, 362 (1998); cond-mat/9811213) we have studied metal-insulator transition in a generalized Hubbard model with correlated hopping at…