Asymmetric Diamond Ising--Hubbard Chain with Attraction
Bohdan Lisnyi
TL;DR
This paper provides an exact analysis of the ground state and thermodynamic behavior of an asymmetric diamond Ising--Hubbard chain with on-site electron attraction, revealing how attraction influences magnetic properties.
Contribution
It introduces an exact solution for the asymmetric diamond Ising--Hubbard chain with electron attraction, expanding understanding of its thermodynamic and magnetic properties.
Findings
Electron attraction affects ground state configurations.
Magnetization and susceptibility depend on attraction strength.
Thermodynamic quantities show characteristic temperature behaviors.
Abstract
The ground state and thermodynamic properties of an asymmetric diamond Ising--Hubbard chain with the on-site electron-electron attraction has been considered. The problem can be solved exactly using the decoration-iteration transformation. In the case of the antiferromagnetic Ising interaction, the influence of this attraction on the ground state and the temperature dependences of the magnetization, magnetic susceptibility, and specific heat has been studied.
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Taxonomy
TopicsPhysics of Superconductivity and Magnetism · Theoretical and Computational Physics · Diamond and Carbon-based Materials Research