Left-handed behavior and low-loss passband in a ferromagnetic sandwich structure

Left-handed behavior and low-loss passband in a ferromagnetic sandwich structure
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铁磁夹层结构中的左手行为和低损耗通带

DOI:
10.1063/1.3233899
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发表时间:
2009-09
影响因子:
4.4
通讯作者:
Zhao, Hongjie
Zhao, Hongjie
中科院分区:
化学2区
文献类型:
--
作者:
Xu, Fang;Zhou, Ji;Qiao, Lijie;Bai, Yang;Zhao, Hongjie

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对铁磁-电介质-铁磁夹层结构的电磁特性进行了实验和仿真研究。在透射谱中,由于两个铁氧体板的强耦合激发了一个传播模,在铁磁共振的宽禁带中出现了一个明显的通带。由于表面波的特性和偏置磁场泵浦,通带具有超低损耗(<$-1 dB)。仅基于磁共振,在第二板中发生传播波的负相位演化。三明治结构的超低通带插入损耗和磁可调特性使其具有广阔的应用前景。
The electromagnetic properties of a ferromagnetic-dielectric-ferromagnetic sandwich structure were studied by experiment and simulation. In the transmission spectra, an obvious passband emerges in the broad forbidden band of ferromagnetic resonance because the strong coupling of two resonatingferrite slabs excites a propagating mode. The passband has ultralow loss ( ∼ − 1 dB ) due to the feature of surface wave and the bias magnetic field pump. A negative phase evolution of propagating wave occurs in the second slab only based on the magnetic resonance. The ultralow insertion loss of passband and magnetotunability endow the sandwich structure a promising application future.
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