Researchers at the University of Leicester have proposed an innovative solution to unwanted magnetic interference using a magnetic invisibility cloak. In their recent paper in Science Advances, they detail a concept that allows objects to behave as if they are "not there" by manipulating the flow of magnetic fields around them. This new cloak can accommodate various shapes, overcoming limitations of previous designs that were usually cylindrical or spherical.
The key components of this cloak involve combining a superconductor with soft ferromagnetic materials, which work together to redirect magnetic fields and prevent detection from external signals. This approach significantly enhances the potential applications in fields like medicine and aerospace, where magnetic interference can cause significant issues.
Although the proposed cloak is still in the conceptual phase and requires very low temperatures to function, researchers highlight the established cryogenic industry as a support for future development. Their next steps involve creating and testing a physical version using high-temperature superconducting tape. Senior author Harold Lewis emphasizes the practicality of this technology, noting its potential for real-world applications.
