Fluidic Endogenous Magnetism and Magnetic Monopole Clues from Liquid Metal Droplet Machine

TL;DR

This paper introduces a novel liquid metal-based approach to generate endogenous magnetism and magnetic monopoles, challenging traditional rigid magnet paradigms through theoretical and conceptual experiments involving gallium liquid metal.

Contribution

It presents an unconventional method to produce endogenous magnetism and magnetic monopoles using liquid metal machines, expanding possibilities for magnetoelectric devices.

Findings

Liquid metal rotation creates endogenous magnetic fields.

Liquid metal droplets exhibit reciprocal attraction via N and S poles.

Dynamic charge distribution in liquid metal motors produces endogenous magnetism.

Abstract

Magnetism and magnetic monopole are classical issues in basic physics. Conventional magnets are generally composed of rigid materials with shapes and structures unchangeable which may face challenges sometimes to answer the above questions. Here, from an alternative other than rigid magnet, we disclosed an unconventional way to generate endogenous magnetism and then construct magnetic monopole through tuning liquid metal machine. Through theoretical interpretation and conceptual experiments, we illustrated that when gallium base liquid metal in solution rotates under actuation of an external electric field, it forms an endogenous magnetic field inside which well explains the phenomenon that two such discrete metal droplets could easily fuse together, indicating their reciprocal attraction via N and S poles. Further, we conceived that the self-driving liquid metal motor was also an endogenous magnet owning the electromagnetic homology. When liquid metal in solution swallowed aluminum inside, it formed a spin motor and dynamically variable charge distribution which produced an endogenous magnetic field. This finding explains the phenomena that there often happened reflection collision and attraction fusion between running liquid metal motors which were just caused by the dynamic adjustment of their N and S polarities. Finally, we conceived that such endogenous magnet could lead to magnetic monopole and four technical routes were suggested as: 1. Matching the interior flow field of liquid metal machines; 2. Superposition between external electric effect and magnetic field; 3. Composite construction between magnetic particles and liquid metal motor; 4. Chemical ways such as via galvanic cell reaction. Overall, the fluidic endogenous magnet and the promising magnetic monopole it enabled may lead to unconventional magnetoelectric devices and applications in the near future.