Effect of finite domain-wall width on the domain structures of epitaxial ferroelectric and ferroelastic thin films

2001 ◽  
Vol 89 (2) ◽  
pp. 1355-1366 ◽  
Author(s):  
A. Yu. Emelyanov ◽  
N. A. Pertsev ◽  
E. K. H. Salje
Keyword(s):  
Thin Films ◽  
Domain Wall ◽  
Finite Domain ◽  
Wall Width ◽  
Domain Structures ◽  
Domain Wall Width

Micromagnetic Simulation on Ground State Domain Structures of Barium Hexaferrite (BaFe12O19)

2014 ◽  
Vol 896 ◽  
pp. 414-417 ◽  
Author(s):  
Dede Djuhana ◽  
Dita C.C. Oktri ◽  
D.H. Kim
Keyword(s):  
Domain Wall ◽  
Ground State ◽  
Full Width Half Maximum ◽  
Barium Hexaferrite ◽  
Micromagnetic Simulation ◽  
Bloch Wall ◽  
Full Width ◽  
Wall Width ◽  
Domain Structures ◽  
Domain Wall Width

We have systematically investigated the domain structures of Barium Hexaferrite (BaFe12O19) by means of a micromagnetic simulation under zero external magnetic field. A hexagonal-shaped and cylindrical-shaped models are used in this simulation with respect to the diameter variation from 50 nm to 600 nm. A transition domain structure is found from a single-domain (SD) to multi-domain (MD) at a certain diameter. The hexagonal-shaped occurs in diameter 430 nm and cylindrical-shaped in diameter 410 nm. Interestingly, the domain wall of MD structure exhibits a Bloch-wall type. The domain wall width is determined by full width half maximum (FWHM) method from the transverse magnetization component data. The domain wall width from simulation showed close to Kittel’s formula

Electron Holographic Characterization of Ferroelectric Thin Films

1992 ◽  
Vol 284 ◽  
Author(s):  
Xiao Zhang ◽  
David C. Joy
Keyword(s):  
Thin Films ◽  
Domain Wall ◽  
Domain Walls ◽  
Ferroelectric Domain ◽  
Electron Holography ◽  
Contrast Imaging ◽  
Thin Specimen ◽  
Wall Width ◽  
Domain Wall Width

ABSTRACTIn this paper we will present recent experimental results, using electron holography and electron interferometry, of studies of ferroelectric domain walls in BaTiO3 thin films. Unlike conventional TEM diffraction contrast imaging of ferroelectrics, the new technique that we have developed not only allows direct visualization of ferroelectric domain walls and electrostatic field distributions in the vicinity of the domain wall, but also enables quantitative measurement of domain wall width and local polarization. We have measured 90° domain wall width to be between 20 to 50 Å for a BaTiO3 thin specimen. The variation of polarization across the domain wall will be shown to be close to that predicted by the Zhirnov model. The value of the measured spontaneous polarization is about 1.5×10−5 C/cm2, which is closed to the bulk macroscopically measured value.

Domain wall width and velocity behaviors in notched magnetic devices

2007 ◽  
Vol 101 (9) ◽  
pp. 09F504 ◽  
Author(s):  
Se Dong Kim ◽  
Byong Sun Chun ◽  
Young Keun Kim
Keyword(s):  
Domain Wall ◽  
Wall Width ◽  
Magnetic Devices ◽  
Domain Wall Width

Influence of step edges and strain on the domain wall width

2005 ◽  
Vol 72 (10) ◽  
Author(s):  
S. Bodea ◽  
W. Wulfhekel ◽  
J. Kirschner
Keyword(s):  
Domain Wall ◽  
Wall Width ◽  
Domain Wall Width ◽  
Step Edges

Influence of magnetic domain-wall width and shape on magnetoresistance measurements

2001 ◽  
Vol 89 (11) ◽  
pp. 7203-7205
Author(s):  
S. Mangin ◽  
C. Bellouard ◽  
P. Turban ◽  
S. Andrieu ◽  
F. Canet ◽  
...  
Keyword(s):  
Domain Wall ◽  
Magnetic Domain ◽  
Magnetic Domain Wall ◽  
Wall Width ◽  
Domain Wall Width
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