3 papers
cond-mat.stat-mech2026
The formation of magnetic reentrancy in the Ising model on a decorated square lattice
A. V. Zarubin, F. A. Kassan-Ogly
In our work, based on an exact solution of the Ising model on a decorated square lattice with an arbitrary number of decorating spins, we have demonstrated the fundamental possibil…
cond-mat.stat-mech2020
Frustrations in the Ising chain with the third-neighbor interactions
A. V. Zarubin, F. A. Kassan-Ogly, A. I. Proshkin
We study the frustration properties of the Ising model on a one-dimensional monoatomic equidistant lattice, taking into account the exchange interactions of atomic spins at the sit…
cond-mat.str-el2002
Density-of-states picture and stability of ferromagnetism in the highly-correlated Hubbard model
V. Yu. Irkhin, A. V. Zarubin
The problem of stability of saturated and non-saturated ferromagnetism in the Hubbard model is considered in terms of the one-particle Green's functions. Approximations by Edwards…