Unique properties of microwave in interlayer exchange-coupled trilayer ferromagnetic films associated with negative imaginary part of permeability

Chen, Jiangwei; Tang, Dongming; Zhang, Baoshan; Yang, Yi; Lu, M.; Lu, Huanjun

doi:10.1016/j.jmmm.2009.01.022

Cited by 6 publications

(7 citation statements)

References 33 publications

(86 reference statements)

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“…2(a), one also observes the same low-loss transmission effect as predicted in Ref. 6, but for a different multilayer and different direction of magnetization. Excitation of the fundamental mode results in the decrease of transmission, but excitation of the 1st exchange SSW noticeably improves (increases) the transmission with respect to the offresonance response.…”

Section: Numerical Simulationssupporting

confidence: 83%

“…15 From this point of view, the effect of the low-loss transmission considered in Ref. 6 and here may be regarded as extension of the exchange conductivity effect on the films, which are thinner than the skin depth for the material.…”

Section: Numerical Simulationsmentioning

confidence: 99%

“…In the recent years, there has been a significant interest towards electromagnetic wave transmission through conducting metallic magnetic films with sub-micron thicknesses. [1][2][3][4][5][6][7] It has been found that these structures may possess signatures of left-handed behaviour in the terahertz 1 and gigahertz 2-6 frequency ranges.…”

mentioning

confidence: 99%

“…6 This theoretical study of electromagnetic wave transmission through the tri-layer was performed for the particular case of magnetization of the structure perpendicular to the film surface. It was found that near the resonance frequency for the optic mode, one of the magnetic layers becomes a left-handed material.…”

mentioning

confidence: 99%

“…Unfortunately, the configuration from Ref. 6-the out-of-plane magnetised single or tri-layer magnetic films-is not practical, as it is not clear how to apply a magnetic field perpendicular to the film plane in the microwave transmission/reflection experiment as a magnet will shadow the sample from the incident electromagnetic field.…”

mentioning

confidence: 99%

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Transmission of microwaves through exchange-coupled bi-layer magnetic films in ferromagnetic and standing spin wave resonances

Kostylev

2012

Journal of Applied Physics

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In this work, we have studied theoretically the transmission and reflection of electromagnetic waves in the microwave frequency range through the in-plane magnetized exchange-coupled bi-layer ferromagnetic metallic films. It was found that responses of the films in transmission and reflection are very different. In transmission, the response of the fundamental mode dominates, but in reflection, the first exchange mode demonstrates the largest variation in amplitude with respect to the off-resonance regime. The theory also predicts an interesting regime of low-loss transmission associated with the resonance excitation of the first (anti-symmetric) exchange standing spin wave mode. In this regime, the transmission through the sample increases instead of decreasing for this mode. V C 2012 American Institute of Physics. [http://dx.

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Section: Numerical Simulationssupporting

confidence: 83%

Section: Numerical Simulationsmentioning

confidence: 99%