95 citations · 1.4k across the 71 of their papers we have counts for
71 papers
Thermal pseudo-transitions in a frustrated spin-pseudospin sawtooth chain
Onofre Rojas, Jozef Strečka
We present an exact analysis of a spin--pseudospin X sawtooth chain that incorporates three distinct valence states of copper ions and serves as a minimal model for one-dimensional…
Thermodynamic constraints and pseudotransition behavior in a one-dimensional water-like system
F. F. Braz, S. M. de Souza, M. L. Lyra +1
We investigate a one-dimensional water-like lattice model with Van der Waals and hydrogen-bond interactions, allowing for particle number fluctuations through a chemical potential.…
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…
Towards a quasiphase transition in the single-file chain of water molecules: Simple lattice model
Maksym Druchok, Volodymyr Krasnov, Taras Krokhmalskii +4
Recently, X.Ma et al. [Phys. Rev. Lett. 118, 027402 (2017)] have suggested that water molecules encapsulated in (6,5) single-wall carbon nanotube experience a temperature-induced q…
Emergence of quantum spin frustration in spin-1/2 Ising-Heisenberg model on a decorated honeycomb lattice
Onofre Rojas
We study the spin-1/2 Ising-XXZ model on a decorated honeycomb lattice composed of five spins per unit cell, one Ising spin, and four Heisenberg spins. This model involving the Hei…