Investigation of the Domain Structure of Co-Based Microwires by Magneto-Optical Indicator Films Method

Investigation of the Domain Structure of Co-based Microwires by Magneto-Optical Indicator Films Method

Физика твердого тела ◽

10.21883/ftt.2021.04.50747.pss259 ◽

2021 ◽

Vol 63 (4) ◽

pp. 514

Author(s):

O.I. Aksenov ◽

A.S. Aronin

Keyword(s):

Surface Layer ◽

Structure Formation ◽

Domain Structure ◽

Domain Walls ◽

Optical Indicator ◽

Surface Domains

The investigation of domain structure of Co-based microwires with negative magnetostriction was provided by magnetooptical method of indicator films. The thickness of the domain layer and the width of the surface domains were determined. It has been suggested that in thin microwires (with the diameter of about several tens of microns) with negative magnetostriction, the Neel-type of domain walls between the domains of the surface layer are observed. A number of assumptions about the regularities of the surface domain structure formation of microwires with negative magnetostriction have been put forward.

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Magneto‐optical indicator film observation of domain structure in magnetic multilayers

Applied Physics Letters ◽

10.1063/1.113421 ◽

1995 ◽

Vol 66 (7) ◽

pp. 888-890 ◽

Cited By ~ 43

Author(s):

L. H. Bennett ◽

R. D. McMichael ◽

L. J. Swartzendruber ◽

S. Hua ◽

D. S. Lashmore ◽

...

Keyword(s):

Domain Structure ◽

Magnetic Multilayers ◽

Optical Indicator ◽

Indicator Film

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

Applied Physics Letters ◽

10.1063/1.2077854 ◽

2005 ◽

Vol 87 (14) ◽

pp. 142507 ◽

Cited By ~ 55

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

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Domains and domain nucleation in magnetron-sputtered CoCr thin films

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100151064 ◽

1993 ◽

Vol 51 ◽

pp. 1046-1047

Author(s):

B. G. Demczyk

Keyword(s):

Thin Films ◽

Domain Structure ◽

Magnetic Domain ◽

Domain Size ◽

Film Plane ◽

Magnetic Domain Structure ◽

Perpendicular Magnetization ◽

Columnar Grains ◽

Reversal Mechanism ◽

Lorentz Transmission Electron Microscopy

CoCr thin films have been of interest for a number of years due to their strong perpendicular anisotropy, favoring magnetization normal to the film plane. The microstructure and magnetic properties of CoCr films prepared by both rf and magnetron sputtering have been examined in detail. By comparison, however, relatively few systematic studies of the magnetic domain structure and its relation to the observed film microstructure have been reported. In addition, questions still remain as to the operative magnetization reversal mechanism in different film thickness regimes. In this work, the magnetic domain structure in magnetron sputtered Co-22 at.%Cr thin films of known microstructure were examined by Lorentz transmission electron microscopy. Additionally, domain nucleation studies were undertaken via in-situ heating experiments.It was found that the 50 nm thick films, which are comprised of columnar grains, display a “dot” type domain configuration (Figure 1d), characteristic of a perpendicular magnetization. The domain size was found to be on the order of a few structural columns in diameter.

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Ferroelectric Domain Structure of Pb(Zr.52Ti.48)03

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s1431927600000933 ◽

1980 ◽

Vol 38 ◽

pp. 214-215

Author(s):

E.K. Goo ◽

R.K. Mishra

Keyword(s):

Phase Transformation ◽

Domain Structure ◽

Tetragonal Phase ◽

Ferroelectric Domain ◽

Cubic Phase ◽

Ion Milling ◽

Thin Foils ◽

Ferroelectric Domain Structure ◽

Ferroelectric Domains

Ferroelectric domains are twins that are formed when PZT undergoes a phase transformation from a non-ferroelectric cubic phase to a ferroelectric tetragonal phase upon cooling below ∼375°C.,1 The tetragonal phase is spontaneously polarized in the direction of c-axis, making each twin a ferroelectric domain. Thin foils of polycrystalline Pb (Zr.52Ti.48)03 were made by ion milling and observed in the Philips EM301 with a double tilt stage.

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