Dynamic drift of the magnetic domains in ferrite-garnet crystals

Pamyatnykh, L. A.; Lysov, M. S.; Shmatov, G. A.; Kandaurova, G. S.; Druzhinin, A. V.

doi:10.3103/s1062873810100278

Cited by 6 publications

(4 citation statements)

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“…[4] experimental dependencies of drift speed in iron garnet single crystals with complex character of magnetic anisotropy on amplitude and frequency of external oscillating magnetic eld were established.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Theoretical Study of Stripe Magnetic Domain Structure Drift in Iron Garnet Crystals

et al. 2015

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The results of experimental and theoretical study of magnetic domain structure drift in low frequency oscillating magnetic eld oriented perpendicular to the sample plate are presented. Experimental study was performed on uniaxial iron garnet (TbErGd)3(FeAl)5O12 (111) plate with rhombic anisotropy for the case when orientation of domain walls of stripe domains is preserved. Dynamic domain structure was revealed by means of magnetooptic Faraday e ect and registered by high speed digital camera at the speed equal to 1200 fps. Theoretical model based on the motion equations for coupled harmonic oscillators that takes into account attenuation and eld inhomogeneity along the plate is proposed.

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Section: Introductionmentioning

confidence: 99%

Experimental and Theoretical Study of Stripe Magnetic Domain Structure Drift in Iron Garnet Crystals

et al. 2015

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“…Dislocation mechanism of DW drift was proposed in [3]. In [4] experimental dependencies of drift speed on amplitude and frequency in ferrite garnet single crystals with complex character of magnetic anisotropy were obtained and compared with theoretical results of [2].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study and Numerical Modelling of Magnetic Domain Walls Drift in Ferrite Garnet Crystals

Pamyatnykh¹,

Shmatov²,

Lysov³

et al. 2014

SSP

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The results of study of domain walls oscillations in harmonic magnetic field H = H0sin (2πft) oriented perpendicular to ferrite garnet (TbErGd)3(FeAl)5O12 (111) sample plate for amplitudes that include the drift of domain walls are reported. Numerical modelling of domain walls motion was performed for frequencies f~102 Hz, where the drift is observed experimentally. Comparison of results of numerical modelling with experimental results shows their qualitative agreement. It was established that domain walls oscillations amplitude is a linear function of amplitude of oscillating magnetic field.

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“…The results from simultaneously investigating the reconstruction of a domain structure (DS) and mag netooptical hysteresis loops in the region of frequen cies and amplitudes of a variable magnetic field in which the drift of domain walls was observed were pub lished in [1][2][3]. A harmonic magnetic field with a fre quency of 25-1000 Hz and amplitude H 0 of up to 750 Oe was applied perpendicular to wafer plane (111) of a single (TbErGd) 3 Fe 5 O 12 ferrite-garnet crystal 50 µm thick with quality factor Q < 1.…”

Section: Introductionmentioning

confidence: 99%

“…A harmonic magnetic field with a fre quency of 25-1000 Hz and amplitude H 0 of up to 750 Oe was applied perpendicular to wafer plane (111) of a single (TbErGd) 3 Fe 5 O 12 ferrite-garnet crystal 50 µm thick with quality factor Q < 1. The magnetic anisotropy of the sample was characterized by its cubic, induced uniaxial, and orthorhombic compo nents.…”

Section: Introductionmentioning

confidence: 99%

Drift of domain walls in a harmonic magnetic field

Pamyatnykh

Druzhinin

Lysov

et al. 2013

Bull. Russ. Acad. Sci. Phys.

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Abstract-It is shown that a two step form of the dynamic magnetization curve (and the hysteresis loop) established for a multiaxial ferrite-garnet wafer with a low quality factor (Q < 1) and considerable anisotropy in the plane (K p /K u = 14) in the frequency range of 25-1000 Hz is explained by the reconstruction of the dynamic domain structure, particularly by the established features of the drift of domain boundaries in the harmonic magnetic field.

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Dynamic drift of the magnetic domains in ferrite-garnet crystals

Cited by 6 publications

References 0 publications

Experimental and Theoretical Study of Stripe Magnetic Domain Structure Drift in Iron Garnet Crystals

Experimental and Theoretical Study of Stripe Magnetic Domain Structure Drift in Iron Garnet Crystals

Experimental Study and Numerical Modelling of Magnetic Domain Walls Drift in Ferrite Garnet Crystals

Drift of domain walls in a harmonic magnetic field

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