Thermodynamic properties and hysteresis loops in a hexagonal core-shell nanoparticle
Si-Yu Wang1, Dan Lv2, Zhen-Yu Liu1
1School of Environmental and Chemical Engineering, Shenyang University of Technology, Shenyang, 110870, China; School of Sciences, Shenyang University of Technology, Shenyang, 110870, China.
Journal of Molecular Graphics & Modelling
|June 22, 2021
Summary
This study explores hexagonal core-shell nanoparticles using Monte Carlo simulations. The research highlights how magnetic properties and critical temperature are influenced by anisotropy, coupling, and external fields, revealing complex hysteresis behaviors.
Area of Science:
- Condensed Matter Physics
- Materials Science
Background:
- Hexagonal core-shell nanoparticles are crucial in magnetic applications.
- Understanding their thermodynamic properties and magnetic behavior is essential for technological advancement.
Purpose of the Study:
- To investigate the thermodynamic properties and hysteresis loops of a ferrimagnetic mixed-spin (3/2, 5/2) Ising model in hexagonal core-shell nanoparticles.
- To analyze the influence of single-ion anisotropy, exchange coupling, and external magnetic field on system behavior.
Main Methods:
- Monte Carlo simulation was employed to model the magnetic system.
- The study focused on analyzing thermodynamic quantities and hysteresis loop characteristics.
Main Results:
- Single-ion anisotropy, exchange coupling, and external magnetic field significantly impact thermodynamic properties and hysteresis loops.
- The critical temperature's variation with different parameters was determined.
- Under specific conditions, the system demonstrated complex multiple-loop hysteresis behaviors.
Conclusions:
- The interplay of physical parameters dictates the magnetic behavior and hysteresis phenomena in these nanoparticles.
- The findings provide insights into the design and application of magnetic nanomaterials.
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