Quantum Colliding of Two the Vertical Bloch Lines in the Domain Walls of Uniaxial Ferromagnetic Film

2018 ◽  
Vol 10 (4) ◽  
pp. 04026-1-04026-4
Author(s):  
A. B. Shevchenko ◽  
◽  
M. Yu. Barabash ◽  
Keyword(s):  
Domain Walls ◽  
Ferromagnetic Film ◽  
Bloch Lines ◽  
Uniaxial Ferromagnetic Film

scholarly journals Controllable field-free switching of perpendicular magnetization through bulk spin-orbit torque in symmetry-broken ferromagnetic films

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Xuejie Xie ◽  
Xiaonan Zhao ◽  
Yanan Dong ◽  
Xianlin Qu ◽  
Kun Zheng ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Domain Walls ◽  
Single Layer ◽  
Ferromagnetic Film ◽  
Effective Field ◽  
Composition Gradient ◽  
Spin Orbit ◽  
Interlayer Exchange Coupling ◽  
Magnetization Switching ◽  
Perpendicular Magnetization

AbstractProgrammable magnetic field-free manipulation of perpendicular magnetization switching is essential for the development of ultralow-power spintronic devices. However, the magnetization in a centrosymmetric single-layer ferromagnetic film cannot be switched directly by passing an electrical current in itself. Here, we demonstrate a repeatable bulk spin-orbit torque (SOT) switching of the perpendicularly magnetized CoPt alloy single-layer films by introducing a composition gradient in the thickness direction to break the inversion symmetry. Experimental results reveal that the bulk SOT-induced effective field on the domain walls leads to the domain walls motion and magnetization switching. Moreover, magnetic field-free perpendicular magnetization switching caused by SOT and its switching polarity (clockwise or counterclockwise) can be reversibly controlled in the IrMn/Co/Ru/CoPt heterojunctions based on the exchange bias and interlayer exchange coupling. This unique composition gradient approach accompanied with electrically controllable SOT magnetization switching provides a promising strategy to access energy-efficient control of memory and logic devices.

Interaction of Tops of Domains in Metal Nano of the Film

2019 ◽  
Vol 945 ◽  
pp. 771-775 ◽  
Author(s):  
V.P. Panaetov ◽  
Denis B. Solovev
Keyword(s):  
Magnetic Field ◽  
Experimental Data ◽  
Film Thickness ◽  
Magnetic Structure ◽  
Domain Walls ◽  
Magnetic Moments ◽  
Ferromagnetic Film ◽  
Easy Magnetization ◽  
Electron Transmission ◽  
Transmission Microscope

Ferromagnetic film can be a matrix for recording information with the help of magnetic moments of electrons. The study of the processes of changing the magnetic structure in an electron-transmission microscope makes it possible to investigate micro magnetic phenomena. In this paper, we investigate the interaction between the vertices of neighboring regions. It is shown how the magnetic structure of the vertices of the domains changes as they approach each other with the help of an increasing constant magnetic field applied along the axis of easy magnetization. The distance was measured between the vertices of the domains. The schemes of distribution of the magnetization vectors between interacting vertices are shown. These schemes are made from experimental images of the magnetic structure. The distances between domain vertices and domain walls were compared on the basis of experimental data. The film thickness is 50 nm; the structure is Ni0.83-Fe0.17. The films were obtained by the method proposed by us. From the experimental results it follows that the interaction of the domain walls is observed at a distance of 20 microns and the interaction of the domain vertices is manifested at a distance of 100 μm.

Modeling and numerical studies of domain walls dynamics with π vertical Bloch lines

2000 ◽  
Vol 81 (1-3) ◽  
pp. 363-366
Author(s):  
Şt.C. Bădescu ◽  
V. Bădescu ◽  
N. Rezlescu ◽  
Rodica Bădescu
Keyword(s):  
Domain Walls ◽  
Numerical Studies ◽  
Bloch Lines

“Bloch lines” in domain walls of yttrium orthoferrite

1999 ◽  
Vol 85 (8) ◽  
pp. 5989-5991 ◽  
Author(s):  
Y. S. Didosyan ◽  
G. A. Reider ◽  
H. Hauser
Keyword(s):  
Domain Walls ◽  
Yttrium Orthoferrite ◽  
Bloch Lines

3-D simulation of Bloch lines in 180° domain walls in thin iron films

1998 ◽  
Vol 177-181 ◽  
pp. 229-230 ◽  
Author(s):  
S. Huo ◽  
J.E.L. Bishop ◽  
J.W. Tucker ◽  
W.M. Rainforth ◽  
H.A. Davies
Keyword(s):  
Domain Walls ◽  
Iron Films ◽  
Bloch Lines

Bloch lines in domain walls of antiferromagnets

2006 ◽  
Vol 51 (7) ◽  
pp. 949-951
Author(s):  
G. E. Khodenkov
Keyword(s):  
Domain Walls ◽  
Bloch Lines
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