Metamaterial hides magnetic field from outside detection
AUG 21, 2015
DOI: 10.1063/PT.5.029141
New Scientist : Alvaro Sanchez of the Autonomous University of Barcelona, Spain, and his colleagues have built a device that makes a magnetic field seem to disappear as it enters on one side and then reappears on the other. The device uses spherical layers of superconducting and magnetic materials to shield the magnetic field from incoming electromagnetic fields. The configuration allows the magnetic field to traverse the diameter of the sphere through a tube designed to minimize any loss of strength. When the magnetic field exits the tube, it looks like a monopole, a magnetic field that doesn’t form a loop with itself.
© 2015 American Institute of Physics
