磁错觉:通过负磁导率将一个磁性物体变换成另一个物体
Magnetic illusion: transforming a magnetic object into another object by negative permeability
摘要:
我们从理论上预测和实验验证的错觉,变换到另一个任意对象的一个3D对象的磁签名。这是通过采用负磁导率材料,我们证明,可以通过定制的电流集来模拟。铁磁体的磁响应到它的拮抗材料,超导体的实验转换,证实了这一理论。电流对负磁导率材料的模拟为以前所未有的方式设计控制磁场的器件提供了一条新的途径。
英文摘要:
We theoretically predict and experimentally verify the illusion of transforming the magnetic signature of a 3D object into that of another arbitrary object. This is done by employing negative-permeability materials, which we demonstrate that can be emulated by tailored sets of currents. The experimental transformation of the magnetic response of a ferromagnet into that of its antagonistic material, a superconductor, is presented to confirm the theory. The emulation of negative-permeability materials by currents provides a new pathway for designing devices for controlling magnetic fields in unprecedented ways.
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