American Physical Society Synopsys   May 29, 2018 Magnetic cloaks typically use superconducting materials, which must be cooled to cryogenic temperatures. An international team of researchers (China, Sweden) has built a room-temperature cloak that does not employ superconductors. Such a cloak could be useful in shielding sensitive devices from external magnetic fields. Their cloak consists of a hollow cylinder made of several foils of a high-magnetic-permeability material with copper wires running along the cylinder’s length. When currents pass through the wires shields the interior of the cylinder from external magnetic fields. Experiments demonstrated that the device works at room temperature for […]