Antimagnets That Nullify Magnetic Fields

September 18, 2011

 

Via PES Wiki:

Researchers at the Universitat Autònoma de Barcelona (UAB) have obtained a formula for building a ” Antimagnet.” that can nullify the magnetic field, a discovery that was published in the New Journal of Physics.

UAB researchers publish in New Journal of Physics a formula to create a device capable of blocking any type of magnetic field. The antimagnet will make it possible for people with pacemakers to undergo magnetic resonances and to control the magnetic fields of technological devices.

Researchers worked to obtain a formula which will cover three objectives. First, an object’s magnetic field will not penetrate the exterior once it is covered by the antimagnet. Second, everything cloaked by the antimagnet will be protected from external magnetic fields and the object inside will be undetectable. Third, all materials used to create the antimagnet must be available, i.e. the antimagnet must be manufactured with the use of existing technology.

The formula UAB researchers have devised is based on overlapping layers of materials with different magnetic properties, forming what is known as a metamaterial. The device consists of an internal superconductor layer covered by several layers of ferromagnetic material, separated by air or other materials which do not have magnetic properties.