Application of Magneto- Optical Indicator Film Method to Study Domain Magnetic Structure in Microwires

2014 ◽  
pp. 219-226
Keyword(s):  
Magnetic Structure ◽  
Optical Indicator ◽  
Film Method ◽  
Domain Magnetic Structure ◽  
Indicator Film

Domain wall generation and propagation in an amorphous ferromagnetic NiFeSiB film confirmed by the magneto-optical indicator film method

2011 ◽  
Vol 519 (10) ◽  
pp. 3301-3304
Author(s):  
B.S. Chun ◽  
Y.K. Kim ◽  
J.Y. Hwang ◽  
J.R. Rhee ◽  
Y.M. Lee ◽  
...  
Keyword(s):  
Domain Wall ◽  
Optical Indicator ◽  
Film Method ◽  
Indicator Film

Magnetic domain structure of wires studied by using the magneto-optical indicator film method

2005 ◽  
Vol 87 (14) ◽  
pp. 142507 ◽  
Author(s):  
Yu. Kabanov ◽  
A. Zhukov ◽  
V. Zhukova ◽  
J. Gonzalez
Keyword(s):  
Domain Structure ◽  
Magnetic Domain ◽  
Magnetic Domain Structure ◽  
Optical Indicator ◽  
Film Method ◽  
Indicator Film

Magneto-optical indicator film study of the magnetization of a symmetric spin valve

1996 ◽  
Vol 32 (5) ◽  
pp. 4639-4641 ◽  
Author(s):  
V.I. Nikitenko ◽  
V.S. Gornakov ◽  
L.M. Dedukh ◽  
Yu.P. Kabanov ◽  
A.F. Khapikov ◽  
...  
Keyword(s):  
Spin Valve ◽  
Film Study ◽  
Optical Indicator ◽  
Indicator Film

scholarly journals Efficiency of Magnetostatic Protection Using Nanostructured Permalloy Shielding Coatings Depending on Their Microstructure

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 634
Author(s):  
Tatiana Zubar ◽  
Sergey Grabchikov ◽  
Anna Kotelnikova ◽  
Egor Kaniukov ◽  
Maksim Kutuzau ◽  
...  
Keyword(s):  
Magnetic Structure ◽  
Domain Structure ◽  
Magnetic Domain ◽  
Maximum Value ◽  
Grain Structures ◽  
Domain Boundaries ◽  
Structure Surface ◽  
Pulsed Electrodeposition ◽  
Domain Magnetic Structure ◽  
Superparamagnetic State

The effect of microstructure on the efficiency of shielding or shunting of the magnetic flux by permalloy shields was investigated in the present work. For this purpose, the FeNi shielding coatings with different grain structures were obtained using stationary and pulsed electrodeposition. The coatings’ composition, crystal structure, surface microstructure, magnetic domain structure, and shielding efficiency were studied. It has been shown that coatings with 0.2–0.6 µm grains have a disordered domain structure. Consequently, a higher value of the shielding efficiency was achieved, but the working range was too limited. The reason for this is probably the hindered movement of the domain boundaries. Samples with nanosized grains have an ordered two-domain magnetic structure with a permissible partial transition to a superparamagnetic state in regions with a grain size of less than 100 nm. The ordered magnetic structure, the small size of the domain, and the coexistence of ferromagnetic and superparamagnetic regions, although they reduce the maximum value of the shielding efficiency, significantly expand the working range in the nanostructured permalloy shielding coatings. As a result, a dependence between the grain and domain structure and the efficiency of magnetostatic shielding was found.

Statistical and Multifractal Properties of Barkhausen Jumps in Exchange-Coupled Antiferromagnetic/Ferromagnetic Bilayers

2014 ◽  
Vol 215 ◽  
pp. 35-40 ◽  
Author(s):  
Ivan V. Shashkov ◽  
Mikhail A. Lebyodkin ◽  
Vladimir S. Gornakov
Keyword(s):  
Statistical Analysis ◽  
Hysteresis Loop ◽  
Multifractal Analysis ◽  
Material Structure ◽  
Statistical Distributions ◽  
Magnetization Process ◽  
Pinning Centers ◽  
Jump Size ◽  
Optical Indicator ◽  
Indicator Film

Statistical and multifractal properties of Barkhausen jumps in exchange-coupled ferromagnet/antiferromagnet bilayers are studied on Co/IrMn and NiFe/NiO heterostructures using a magneto-optical indicator film technique. The statistical analysis proves a nonstochastic character of magnetization jumps. In particular, power-law behavior is observed for Co/IrMn samples. Furthermore, the statistics depends on the ferromagnet layer thickness and antiferromagnet layer material structure. The average jump size displays an asymmetry between the forward and backward branches of the hysteresis loop, particularly pronounced for the structure with a thin Co layer. In spite of the observation of such an asymmetry in the activity of the domain nucleation and pinning centers, the statistical distributions of jumps do not show any significant differences for two branches of the hysteresis loop. The conclusion on a nonrandom character of the magnetization process is supported by the multifractal analysis which reveals the presence of correlations in the time arrangement of the Barkhausen jumps.

scholarly journals The antiphase domain magnetic structure of the DyGe3 compound

1996 ◽  
Vol 154 (1) ◽  
pp. 29-36 ◽  
Author(s):  
P. Schobinger-Papamantellos ◽  
T. Janssen ◽  
K.H.J. Buschow
Keyword(s):  
Magnetic Structure ◽  
Antiphase Domain ◽  
Domain Magnetic Structure

scholarly journals Inhomogeneous field calibration of a magneto-optical indicator film device

2020 ◽  
Vol 31 (7) ◽  
pp. 075009
Author(s):  
Manuela Gerken ◽  
Sibylle Sievers ◽  
Hans Werner Schumacher
Keyword(s):  
Inhomogeneous Field ◽  
Field Calibration ◽  
Optical Indicator ◽  
Indicator Film

Magneto-optical indicator film (MOIF) microscopy of granular and layer structures (abstract)

1996 ◽  
Vol 79 (8) ◽  
pp. 6073 ◽  
Author(s):  
V. I. Nikitenko ◽  
V. S. Gornakov ◽  
L. M. Dedukh ◽  
A. F. Khapikov ◽  
L. H. Bennett ◽  
...  
Keyword(s):  
Layer Structures ◽  
Optical Indicator ◽  
Indicator Film
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