14 citations · 55 across the 9 of their papers we have counts for
7 papers · 1 filter
Unusual low-temperature behavior in the half-filled band of the one-dimensional extended Hubbard model in atomic limit
Onofre Rojas, S. M. de Souza, J. Torrico +4
Recently, a kind of finite-temperature pseudo-transition was observed in several quasi-one-dimensional models. In this work, we consider a genuine one-dimensional extended Hubbard…
Magnetocaloric effect in -type compounds using the Heisenberg antiferromagnetic model in a triangular ring
G. A. Antonio, J. Torrico, A. S. da Mata +2
In this work we present a theoretical investigation into an antiferromagnetically coupled spin system, specifically (), which exhibits an isoscel…
Study of the ground state and thermodynamic properties of Cu5-NIPA-like molecular nanomagnets
J. Torrico, J. A. Plascak
The thermodynamic properties of a spatially anisotropic spin-1/2 Heisenberg model for a Cu pentameric molecule is studied through exact diagonalization. The elementary geometry…
Heterobimetallic Dy-Cu coordination compound as a classical-quantum ferrimagnetic chain of regularly alternating Ising and Heisenberg spins
J. Torrico, J. Strecka, M. Hagiwara +5
A classical-quantum chain composed of regularly alternating Ising and Heisenberg spins is rigorously solved by considering two distinct local anisotropy axes of the Ising spins. Th…
Effect of the Canting of Local Anisotropy Axes on Ground-State Properties of a Ferrimagnetic Chain with Regularly Alternating Ising and Heisenberg Spins
J. Torrico, M. L. Lyra, S. M. de Souza +1
The effect of the canting of local anisotropy axes on the ground-state phase diagram and magnetization of a ferrimagnetic chain with regularly alternating Ising and Heisenberg spin…
Quantum entanglement in the neighborhood of pseudo-transition for a spin-1/2 Ising-XYZ diamond chain
I. M. Carvalho, J. Torrico, S. M. de Souza +2
Recently has been observed for some one-dimensional models that exhibit unexpected pseudo-transitions and quasi-phases. This pseudo-transition resembles a first- and second-order p…