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Advanced Materials

Switchable Magnetic Metamaterials Using Micromachining Processes

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Abstract

A switchable magnetic metamaterial is demonstrated via reshaping micro­machined metamaterial molecules. It is experimentally verified that the effective permeability can be switched from negative to positive near the resonant frequency. The micromachining technology offers a powerful platform for switchable metamaterials and provides more degrees of freedom for metamaterial design, easy fabrication, and large tunability.

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