Electric polarization in bi-layered ferromagnetic film with combined magnetic anisotropy

2015 ◽  
Vol 385 ◽  
pp. 60-64 ◽  
Author(s):  
Z.V. Gareeva ◽  
R.A. Doroshenko ◽  
F.A. Mazhitova ◽  
N.V. Shulga
Keyword(s):  
Magnetic Anisotropy ◽  
Ferromagnetic Film ◽  
Electric Polarization

scholarly journals The effect of dynamical compressive and shear strain on magnetic anisotropy in a low symmetry ferromagnetic film

2017 ◽  
Vol 92 (5) ◽  
pp. 054006 ◽  
Author(s):  
T L Linnik ◽  
V N Kats ◽  
J Jäger ◽  
A S Salasyuk ◽  
D R Yakovlev ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Shear Strain ◽  
Ferromagnetic Film ◽  
Low Symmetry

Magnetization Reversal in Ferromagnetic Thin Films

2011 ◽  
Vol 399-401 ◽  
pp. 890-895
Author(s):  
Jia Li Sun ◽  
Jing Guo Hu
Keyword(s):  
Magnetic Anisotropy ◽  
Magnetization Reversal ◽  
Domain Walls ◽  
Magnetic Domain ◽  
Ferromagnetic Film ◽  
Magnetic Films ◽  
Ferromagnetic Thin Films ◽  
Interface Coupling ◽  
Domain Structures ◽  
Reversal Mechanism

The magnetization reversal mechanism of the magnetic films system with the different magnetic anisotropy, exchange coupling, interface coupling, etc. has been simulated by Monte-Carlo method. The results show that the decrease of magnetic anisotropy is in favor of motion of domain walls, but is not conducive to consistent rotation. The interface coupling of both the ferromagnetic film and the antiferromagnetic film are helpful to the motion of domain walls while the antiferromagnetic film coupling is the more effective. Meantime, the evolution of the microscopic magnetic domain structures has been inspected intuitively while the system is in the process of magnetization.

MAGNETIZATION AND INHOMOGENEOUS MAGNETOELECTRIC EFFECT IN A NANO-SIZED TWO-LAYER FERROMAGNETIC FILM WITH A COMBINED UNIAXIAL AND CUBIC ANISOTROPY IN LAYERS

2021 ◽  
Vol 0 (1) ◽  
pp. 23-26
Author(s):  
N.V. SHULGA ◽  
◽  
R.A. DOROSHENKO ◽  
Keyword(s):  
Ground State ◽  
Easy Axis ◽  
Magnetoelectric Effect ◽  
Numerical Study ◽  
Uniaxial Anisotropy ◽  
Polarization Vector ◽  
Ferromagnetic Film ◽  
Electric Polarization ◽  
Ferromagnetic Plate ◽  
Cubic Anisotropy

A numerical study of the magnetization reversal of a two-layer exchange-coupled ferromagnetic plate of finite dimensions, which has a combined uniaxial anisotropy (of the "easy axis" type for the upper layer and «easy plane» for the lower one) and cubic anisotropy with orientation [111]. It is shown that, in the presence of cubic anisotropy, the ground state of magnetization turns out to be uniform in the plane of the film. However, there is discontinuity at the interface between the film layers. This inhomogeneity can lead to the appearance of electric polarization due to the magnetoelectric effect. The electric polarization vector in this case lies in the plane of the film. Its modulus increases with increasing cubic anisotropy. In addition, with an increase in cubic anisotropy, a hysteresis of electrical polarization is observed.

Magnetic anisotropy enhancing by remanent electric polarization in 0.675(Pb(Mg1/3Nb2/3)O3-0.325PbTiO2/CoFe2O4 particulate composites

2018 ◽  
Vol 534 (1) ◽  
pp. 152-158 ◽  
Author(s):  
K. R. C. P. Jimenez ◽  
F. L. Zabotto ◽  
D. Garcia ◽  
A. J. A. De Oliveira
Keyword(s):  
Magnetic Anisotropy ◽  
Electric Polarization ◽  
Particulate Composites

TEM Study of Co/Pd and Co/Au Multilayers

1993 ◽  
Vol 51 ◽  
pp. 1036-1037
Author(s):  
A.E.M. De Veirman ◽  
F.J.G. Hakkens ◽  
W.M.J. Coene ◽  
F.J.A. den Broeder
Keyword(s):  
Magnetic Anisotropy ◽  
Ion Beam ◽  
Perpendicular Magnetic Anisotropy ◽  
Optical Recording ◽  
Magnetic Multilayer ◽  
Ion Beam Sputtering ◽  
Cross Sectional ◽  
Transmission Electron ◽  
Beam Sputtering ◽  
Substrate Temperatures

There is currently great interest in magnetic multilayer (ML) thin films (see e.g.), because they display some interesting magnetic properties. Co/Pd and Co/Au ML systems exhibit perpendicular magnetic anisotropy below certain Co layer thicknesses, which makes them candidates for applications in the field of magneto-optical recording. It has been found that the magnetic anisotropy of a particular system strongly depends on the preparation method (vapour deposition, sputtering, ion beam sputtering) as well as on the substrate, underlayer and deposition temperature. In order to get a better understanding of the correlation between microstructure and properties a thorough cross-sectional transmission electron microscopy (XTEM) study of vapour deposited Co/Pd and Co/Au (111) MLs was undertaken (for more detailed results see ref.).The Co/Pd films (with fixed Pd thickness of 2.2 nm) were deposited on mica substrates at substrate temperatures Ts of 20°C and 200°C, after prior deposition of a 100 nm Pd underlayer at 450°C.

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