Shen Lian, Lin Xiao, Zheng Bin, Yahya Musa Muhyiddeen, Xu Zhiwei, Zhang Xiaohong, Wang Huaping
Opt Lett. 2019 Feb 15;44(4):991-994. doi: 10.1364/OL.44.000991.
In this Letter, we show that magnetized plasma with properly designed parameters at plasma frequency suffers a large magnetoimpedance change under a moderate external magnetic field. Such an interesting feature can be described as the analog of giant magnetoimpedance (GMI), which is confirmed by detailed calculation. GMI devices based on magnetized ε-near-zero plasma do not require microfabrication, and they are capable of working at tunable frequency, even in terahertz frequency range; more importantly, they can be dynamically controlled by environmental parameters such as temperature and pressure.
在本信函中，我们表明，在等离子体频率下具有适当设计参数的磁化等离子体在适度的外部磁场下会遭受较大的磁阻抗变化。这种有趣的特性可被描述为巨磁阻抗（GMI）的类似物，这一点已通过详细计算得到证实。基于磁化的近零介电常数等离子体的GMI器件不需要微加工，并且它们能够在可调频率下工作，甚至在太赫兹频率范围内；更重要的是，它们可以由诸如温度和压力等环境参数进行动态控制。
