Magnetostatic wave dynamic magnetization response in yttrium iron garnet films

Tsankov, Mincho A.; Chen, Ming; Patton, Carl E.

doi:10.1063/1.361003

Cited by 19 publications

(5 citation statements)

References 12 publications

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“…For the values given above, the opening of the precession cone angle at an incident power of 1 mW, or 0 dBm, is on the order of a few degrees. This level of response for the onset of foldover is consistent with the results of Tsankov et al in [18] for propagating MSFVW pulses in a YIG film delay line structure.…”

Section: B High Power Responsesupporting

confidence: 91%

“…Moreover, the change in the FMR frequency and the absorption with power have been studied extensively in YIG disks [3], YIG spheres [9], and thin YIG films [10], [11], [13], [14]. Of direct relevance to the present work are the measurements of an explicit microwave power dependent shift in the frequency of thin YIG film MSW resonators by 2-25 MHz at powers up to several watts [17], [18], as well as the observation of a nonlinear dependence of MSW propagation losses on power [19].…”

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confidence: 90%

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Nonlinear ferromagnetic resonance and foldover in yttrium iron garnet thin films-inadequacy of the classical model

1999

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A thin-film resonator structure has been used for quantitative measurements of ferromagnetic resonance foldover and the associated bistable power response for yttrium iron garnet (YIG) thin films. The resonator consisted of a 1-mm by 1-mm-square, 4.9-m-thick epitaxial YIG film on top of a 50m-wide, 3-mm-long microstrip transducer. A static magnetic field of 3200 Oe was applied perpendicular to the film. Loworder magnetostatic forward volume wave standing modes were excited at low power levels in the 020-dBm range and detected as resonance dips in reflected power versus frequency spectra over the range 4-5 GHz. At powers in the 0-to +15-dBm range, these dips showed foldover and bistable response characteristics for increasing and decreasing frequency or power sweeps. The use of 1-10-s-wide pulses instead of continuous-wave (CW) excitation resulted in the consistent disappearance of the foldover and bistability characteristics. The frequency sweep pulse data at fixed power reproduced the down-sweep CW results, and the pulse data for both increasing and decreasing power at fixed frequency reproduced the increasing-power CW results. A quantitative theoretical analysis demonstrates that observed foldover and bistable response characteristics are much weaker than predicted from the classical precession foldover mechanism proposed by Anderson and Suhl, in which the decrease in the static component of the magnetization drives the response. The up-sweep and down-sweep foldover frequency jumps both occur sooner than predicted by this classical mechanism and the calculated foldover profiles are much more severe than the data show.

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Section: B High Power Responsesupporting

confidence: 91%

mentioning

confidence: 90%

Nonlinear ferromagnetic resonance and foldover in yttrium iron garnet thin films-inadequacy of the classical model

1999

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“…A frequency shift of MSW signals due to the intrinsic nonlinear response of the system has been observed experimentally [13]. These processes, if they could be used as a means for feedback, could be used to design a simple bistable MSW device.…”

Section: Comment On Applicationsmentioning

confidence: 96%

Microwave bistability in a magnetostatic wave interferometer with external feedback

Fetisov

Patton

1999

IEEE Trans. Magn.

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Microwave bistability has been obtained for the first time in a magnetostatic wave (MSW) interferometer with external magnetic field feedback. The interferometer contained a magnetostatic surface wave transmission line with a 7.5-mthick epitaxial film of yttrium iron garnet magnetized with an external static magnetic field of 1048 Oe, a variable attenuator in a parallel reference channel, and external feedback in the form of an additional static field derived from the line output. Bistable and multistable output power versus input power responses are derived from the frequency dependence of the interferometer transmission and the MSW wave number dependence on the static magnetic field. Typical bistable and multistable output versus input power hysteresis loops were obtained under constant frequency operation in the range 4.9 to 5.2 GHz, and for input powers from 030 to +10 dBm. The bistable response depends on the frequency of the microwave signal, the attenuation in the reference channel, and the gain of the feedback loop. An analysis based on linear MSW theory agreed with experiment. Applications of MSW microwave bistability include power limiter devices and basic microwave logic elements.

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“…с ростом угла прецессии намагниченности ψ = |m|/( √ 2M 0 ). В этом случае на частоте накачки за счет нелинейности дисперсии возникает сдвиг спектра ПМСВ δf p [14,[26][27][28][29]…”

Section: влияние четырехмагнонных процессов распадаunclassified

Influence of Parametric Instability of Magnetostatic Surface Spin Waves on Formation of Defect Modes in One-Dimensional Magnonic Crystal With Defect

A.¹,

Pavlov²,

Vysotsky³

et al. 2017

AND

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Magnetostatic wave dynamic magnetization response in yttrium iron garnet films

Abstract: Crystalline anisotropy and loss effects on magnetostatic waves in layered yttrium iron garnet films

Cited by 19 publications

References 12 publications

Nonlinear ferromagnetic resonance and foldover in yttrium iron garnet thin films-inadequacy of the classical model

Nonlinear ferromagnetic resonance and foldover in yttrium iron garnet thin films-inadequacy of the classical model

Microwave bistability in a magnetostatic wave interferometer with external feedback

Influence of Parametric Instability of Magnetostatic Surface Spin Waves on Formation of Defect Modes in One-Dimensional Magnonic Crystal With Defect

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