Magnetic imaging in thin magnetic films by local spectrometer of ferromagnetic resonance

Belyaev, B. A.; Izotov, A. V.; Leksikov, A.A.

doi:10.1109/jsen.2004.842293

Cited by 39 publications

(23 citation statements)

References 11 publications

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“…These include non-aligned FMR mode [12,13], the natural FMR [14], off-resonant absorption associated with the FMR tail [15,16], and the domain mode resonances [17][18][19][20][21][22][23][24][25]. Magnetoresistive absorption in conducting ferromagnetics contributes at all frequencies and is most spectacular at the field when magnetization changes abruptly, namely at zero field [26,27] and upon transition from the unsaturated to saturated state [28][29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Low-field microwave absorption in epitaxial La0.7Sr0.3MnO3films

et al. 2012

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We studied magnetic-field induced microwave absorption in 100-200 nm thick La0.7Sr0.3MnO3 films on SrTiO3 substrate and found a low-field absorption with a very peculiar angular dependence: it appears only in the oblique field and is absent both in the parallel and in the perpendicular orientations. We demonstrate that this low-field absorption results from the ferromagnetic resonance in the multidomain state (domain-mode resonance). Its unusual angular dependence arises from the interplay between the parallel component of the magnetic field that drives the film into multidomain state and the perpendicular field component that controls the domain width through its effect on domain wall energy. The low-field microwave absorption in the multidomain state can be a tool to probe domain structure in magnetic films with in-plane magnetization.

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Section: Introductionmentioning

confidence: 99%

Low-field microwave absorption in epitaxial La0.7Sr0.3MnO3films

et al. 2012

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“…3. The H ex and a uniaxial anisotropy field (H k ) were extracted using FMR equation, which includes a unidirectional anisotropy term [6]. Fig.…”

Section: Resultsmentioning

confidence: 99%

“…FMR data were obtained with a laboratory-made spectrometer at 1.687 GHz. The measuring procedure is described elsewhere [6]. Thus, output voltage, which is proportional to DM=MðtÞ, contains two different frequencies: o and 2o.…”

Section: Methodsmentioning

confidence: 99%

The study of exchange coupling in NiFe/Cu/IrMn trilayer structures by MOKE and FMR measurements

Yoo

Sui

Kim

et al. 2006

Journal of Magnetism and Magnetic Materials

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“…Characterization of the film was made by means of ferromagnetic resonance (FMR) using local FMR spectrometer [12,13] operating at 1034 MHz. The angular dependence of FMR field in the film gives us the value of saturation magnetization 4 s M π =13900 Gs; anisotropy field H a = 8.7 Oe; linewidth of uniform FMR ΔH = 8.8 Oe; and directions of easy and hard axes in the plane of the film.…”

Section: A Thin Magnetic Filmmentioning

confidence: 99%

Magnetically Tunable Resonant Phase Shifters for UHF Band

et al. 2015

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This paper presents a new type of magnetically tunable phase shifter. The shifter has the structure of microstrip bandpass filter on a substrate containing magnetic material whose magnetic permeability is controlled by a magnetic field due to ferromagnetic resonance. The phase shifter's operation is based on the fact that phase shift in a bandpass filter changes with tuning of its central frequency. Two types of devices were designed and fabricated for the UHF band. One of them has a five-layer NiFe film as an active medium and demonstrates a figure of merit of 40°/dB achieved already at 20 Oe of the controlling magnetic field in 10% of the relative operational bandwidth. The second device with YIG ferrite as an active media gave 360° tunable phase shift in 5% operational bandwidth that corresponds to the figure of merit of 150°/dB (3.1°/dB*Oe).

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Magnetic imaging in thin magnetic films by local spectrometer of ferromagnetic resonance

Cited by 39 publications

References 11 publications

Low-field microwave absorption in epitaxial La0.7Sr0.3MnO3films

Low-field microwave absorption in epitaxial La0.7Sr0.3MnO3films

The study of exchange coupling in NiFe/Cu/IrMn trilayer structures by MOKE and FMR measurements

Magnetically Tunable Resonant Phase Shifters for UHF Band

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