Detection of shape and sizes of magnetic impurity based on the shape of magnetic domain configuration

2016 ◽  
Vol 30 (12) ◽  
pp. 1650081 ◽  
Author(s):  
M. L. Akimov ◽  
P. A. Polyakov ◽  
A. A. Banishev ◽  
N. N. Usmanov
Keyword(s):  
Domain Structure ◽  
Magnetic Impurity ◽  
Magnetic Domain ◽  
Magnetic Film ◽  
Magnetic Shielding ◽  
Stripe Domain ◽  
Magnetostatic Field ◽  
Domain Configuration ◽  
Stripe Domain Structure ◽  
Shape And Size

The phenomenon of domain magnetic shielding by the magnetic sample of external and intrinsic magnetostatic field has been revealed. In this work, we investigate the possibility for detection of the shape and size of magnetic impurity based on the shape of magnetic domain configuration in magnetic film. We show that due to the influence of magnetostatic field of stripe domain structure in magnetic film on the magnetostatic field of magnetic impurity, one can determine the shape and size of this impurity.

Influence of asymmetrical location of magnetic impurities on domain walls local deformation

2019 ◽  
Vol 33 (14) ◽  
pp. 1950142 ◽  
Author(s):  
M. L. Akimov ◽  
P. A. Polyakov ◽  
A. A. Banishev ◽  
N. N. Usmanov
Keyword(s):  
Domain Structure ◽  
Domain Walls ◽  
Magnetic Impurity ◽  
Magnetic Ordering ◽  
Magnetic Film ◽  
Local Deformation ◽  
Stray Field ◽  
Magnetic Memory ◽  
Magnetic Impurities ◽  
Stripe Domain

Magnetic ordering in a mixed domain structure composed of a stripe domain and asymmetrically localized magnetic impurity inside the stripe domain was investigated. The analytical expression for domain walls deformation mediated by the influence of the magnetostatic stray field of the asymmetrically localized magnetic impurity was obtained. The calculations were done for the magnetic film with parameters which are typical for films used in magnetic memory. Experimental implementation of the mixed domain structure composed of the stripe domain and asymmetrically localized magnetic impurity inside the stripe domain was done in (BiLu)3(FeGa)5O12 film. Obtained analytical solution for the shape of stripe domain walls distortion is in excellent agreement with the experimental results.

Magnetostatic field in a thin plate with a stripe-domain structure

2007 ◽  
Vol 103 (4) ◽  
pp. 348-350 ◽  
Author(s):  
S. D. Mal’ginova ◽  
R. A. Doroshenko ◽  
N. V. Shul’ga ◽  
R. S. Vladimirova
Keyword(s):  
Domain Structure ◽  
Thin Plate ◽  
Stripe Domain ◽  
Magnetostatic Field ◽  
Stripe Domain Structure

scholarly journals Microstructural and In Situ Lorentz TEM Domain Characterization of As-Quenched and γ’-Precipitated Co49Ni30Ga21 Monocrystal

Crystals ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 153 ◽  
Author(s):  
Andrzej M. Zak ◽  
Wlodzimierz Dudzinski
Keyword(s):  
Domain Structure ◽  
Heusler Alloys ◽  
Nickel Content ◽  
Magnetic Domain ◽  
Magnetic Domain Structure ◽  
Stripe Domain ◽  
Observation Methods ◽  
Transmission Electron ◽  
Stripe Domain Structure

The article concerns the rarely described magnetic domain structure of Heusler alloys in the case of a single crystal [100]-oriented Co-Ni-Ga alloy. The structure of the magnetic domains of the alloy was compared in two states: in the quenched and additionally aged state. Ageing led to precipitation of the spherical phase γ’ nanoparticles (Co-rich, FCC lattice with a = 0.359 nm). Lorentz transmission electron microscopy observation methods combined with cooling and in situ heating of the sample in the transmission electron microscope in the temperature range from 140 K to 300 K were combined to observe the magnetic domain structure. Significant differences in the dimensions and morphology of magnetic domain boundaries have been demonstrated. The quenched sample showed no change in stripe domain structure when the aged sample showed significant development of branching magnetic structures. This may be due to a change in the chemical composition of the matrix resulting from a decrease in cobalt and nickel content at the expense of precipitations.

scholarly journals Ferromagnetic resonance in Mn5Ge3 epitaxial films with weak stripe domain structure

2017 ◽  
Vol 50 (12) ◽  
pp. 125001 ◽  
Author(s):  
R Kalvig ◽  
E Jedryka ◽  
P Aleshkevych ◽  
M Wojcik ◽  
W Bednarski ◽  
...  
Keyword(s):  
Domain Structure ◽  
Ferromagnetic Resonance ◽  
Epitaxial Films ◽  
Stripe Domain ◽  
Stripe Domain Structure
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