Monte Carlo simulation of magnetic phase transitions in Mn doped ZnO
L.B Drissi, A. Benyoussef, E.H Saidi, M. Bousmina
TL;DR
This study uses Monte Carlo simulations within the Ising model to analyze magnetic phase transitions in Mn-doped ZnO, revealing critical concentrations for high-temperature magnetism and addressing controversies in the field.
Contribution
It provides a detailed Monte Carlo simulation analysis of magnetic phase transitions in Mn-doped ZnO, identifying key concentrations for high-temperature magnetism and offering explanations for existing controversies.
Findings
Identified Mn and carrier concentrations for high-temperature transitions
Constructed temperature dependence curves for magnetization, heat capacity, and susceptibility
Provided insights into the nature of magnetism in Mn-doped ZnO systems
Abstract
The magnetic properties of Mn-doped ZnO semi-conductor have been investigated using the Monte Carlo method within the Ising model. The temperature dependences of the spontaneous magnetization, specific heat and magnetic susceptibility have been constructed for different concentrations of magnetic dopant Mn and different carrier concentrations. The exact values of Mn concentration and carrier concentration at which high temperature transition occurs are determined. An alternative for the explanation of some controversies concerning the existence and the nature of magnetism in Mn diluted in ZnO systems is given. Other features are also studied.
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