Dynamics of Bloch lines in a domian wall

Dedukh, L. M.; Никитенко, В. И.; Sonin, É. B.

doi:10.1070/pu1985v028n01abeh003826

Cited by 7 publications

(6 citation statements)

References 1 publication

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“…During magnetization reversal all processes (reversible/irreversible domain wall movement, domain wall creation and annihilation, turn of magnetic moments, para-processes) appear to a more or less extend in parallel due to the acting energies like magnetoelastic energy, crystalline anisotropy, form anisotropy, demagnetizing fields due to sample's shape and due to misoriented grains at sample's surface and within the sample, magnetostriction, stress fields, and other acting energies [1,[25][26][27]. In particular, the stress field of a dislocation is interacting for large distances (multiple domain wall thickness) elastically with a domain wall and the magnetostrictive strain within the domain while it interacts near the dislocation by forming micro domains [28,29]. A decrease of coercive force is generated by both, a reduction of obstacles for domain walls and also by an increase in the number of mobile domain walls [30].…”

Section: Introductionmentioning

confidence: 99%

Magnetic behavior in commercial iron-silicon alloys controlled by the dislocation dynamics at temperatures below 420 K

Lambri

Weidenfeller

Bonifacich

et al. 2021

Journal of Alloys and Compounds

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Section: Introductionmentioning

confidence: 99%

Magnetic behavior in commercial iron-silicon alloys controlled by the dislocation dynamics at temperatures below 420 K

Lambri

Weidenfeller

Bonifacich

et al. 2021

Journal of Alloys and Compounds

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“…Gyrotropy of the equation of motion always results in elliptical or circular polarization of linear-defect oscillations, as occurs in the case of the Kelvin wave. Such oscillations of Bloch lines, or magnetic vortices, have been seen experimentally and studied in theory (Argyle et al , 1984;Dedukh et al , 1985).…”

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confidence: 94%

Vortex oscillations and hydrodynamics of rotating superfluids

1987

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This review covers the progress in the study of vortex oscillations in rotating superfluids. The paper deals with the theory as its principal coricern, but the experimerits that one can compare with the theory considered are also discussed. Attention is focused mainly on the d'fects of crystalline order in the vorte~lattice (the Tkachenko waves especially) and on the boundary problems arising in studies of vortex oscillations in finite containers. The approach is based mostly on the continuum hydrodynamic theory dealing with dense vortex arrays, and considerable attention is devoted to discussion of this theory in order to understand better the principles upon which the obtained results rest. The theory is traced from the simple description of a rotating classical fluid with continuous vorticity, through that of a perfect fluid with quantized vorticity in the form of an array of vortex lines, then the two-fluid theory of an isotropic superfluid, and finally the theory of rotating anisotropic superfluids such as He-A. Applications of the theory to He II, the superfluid phases of He, and the superfluid neutron matter in pulsars are discussed. CONTENTS

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“…looks similar to the Bloch line within the Bloch wall in ferromagnets 16 , and it also cannot escape from the soliton (domain) wall.…”

Section: Solitons and Meronsmentioning

confidence: 88%

Superfluids in rotation: Landau—Lifshitz vortex sheets vs Onsager—Feynman vortices

Volovik¹

2015

Успехи физических наук

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The paper by Landau and Lifshitz on vortex sheets in rotating superfluid appeared in 1955 almost at the same time when Feynman published his paper on quantized vortices in superfluid 4 He. For a long time this paper has been considered as an error. But 40 years later the vortex sheets have been detected in chiral superfluid 3 He-A in the rotating cryostat constructed in the Olli Lounasmaa Low Temperature Laboratory (Otaniemi, Finland). The equation derived by Landau and Lifshits for the distance between the vortex sheets as a function of the angular velocity of rotation has been experimentally confirmed, which is the triumph of the theory. We discuss different configurations of the vortex sheets observed and to be observed in superfluid 3 He-A.

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Dynamics of Bloch lines in a domian wall

Cited by 7 publications

References 1 publication

Magnetic behavior in commercial iron-silicon alloys controlled by the dislocation dynamics at temperatures below 420 K

Magnetic behavior in commercial iron-silicon alloys controlled by the dislocation dynamics at temperatures below 420 K

Vortex oscillations and hydrodynamics of rotating superfluids

Superfluids in rotation: Landau—Lifshitz vortex sheets vs Onsager—Feynman vortices

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