139 citations · 405 across the 9 of their papers we have counts for
3 papers · 1 filter
Two dimensional XXZ-Ising model on square-hexagon lattice
J. S. Valverde, Onofre Rojas, S. M. de Souza
We study a two dimensional XXZ-Ising on square-hexagon (4-6) lattice with spin-1/2. The phase diagram of the ground state energy is discussed, shown two different ferrimagnetic sta…
Generalized Transformation for Decorated Spin Models
Onofre Rojas, J. S. Valverde, S. M. de Souza
The paper discusses the transformation of decorated Ising models into an effective \textit{undecorated} spin models, using the most general Hamiltonian for interacting Ising models…
Phase diagram of the asymmetric tetrahedral Ising-Heisenberg chain
J. S. Valverde, Onofre Rojas, S. M. de Souza.
The asymmetric tetrahedron is composed by all edges of tetrahedron represented by Ising interaction except one, which has a Heisenberg type interaction. This asymmetric tetrahedron…