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Magnetostatic response and field-controlled haloing in binary superparamagnetic mixtures.
Andrey A Kuznetsov1, Sofia S Kantorovich1,2
1Computational and Soft Matter Physics, Faculty of Physics, University of Vienna, Kolingasse 14-16, 1090 Vienna, Austria.
Physical Review. E
|January 20, 2024
Summary
This study explores magnetoresponsive soft materials with multiple magnetic components. Researchers found liquid-based systems exhibit significant magnetic responsiveness and particle redistribution, similar to the haloing effect.
Area of Science:
- Materials Science
- Soft Matter Physics
- Nanotechnology
Background:
- Magnetoresponsive soft materials with multiple magnetic components are increasingly prevalent.
- Their macroscopic behavior arises from complex magnetic interactions within nonuniform internal fields.
Purpose of the Study:
- To investigate the magnetic response of binary superparamagnetic systems in liquid and solid carriers.
- To analyze the influence of concentration and interaction energies on system magnetization.
Main Methods:
- Combined analytical and simulation approaches were employed.
- Equilibrium magnetic response was studied for various concentrations and interaction energies.
Main Results:
- Binary solids showed magnetization dependent on dispersed phase concentration and interparticle interactions.
- Systems in liquid carriers demonstrated high magnetic responsiveness.
- A spatial redistribution of dispersed phases near nanoclusters was observed in liquid systems, akin to the haloing effect.
Conclusions:
- Multicomponent magnetoresponsive systems offer tunable magnetic properties.
- Liquid carriers enhance magnetic responsiveness and induce unique particle behaviors like the haloing effect.
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