作者: Zhu, Jianfei; Jiang, Wei; Liu, Yichao; 等.
NATURE COMMUNICATIONS 卷：6 文献号: 8931 出版年：Nov. 2015It will be advantageous and technologically instrumental to design cloaking devices for applications at low frequencies where electromagnetic components are favorably uncoupled. In this work, under the quasi-static approximation, we demonstrate a perfect magnetic cloaking device composed of ferromagnetic and superconductor bilayer with a large frequency band from zero to 250 kHz. The practical potential of our device is experimentally verified by using a commercial metal detector, which may lead us to having a real cloaking application where the dynamic magnetic field can be manipulated in desired ways.
