Temperature dependence of 180° domain wall width in iron and nickel films analyzed using electron holography

2018 ◽  
Vol 113 (22) ◽  
pp. 222407 ◽  
Author(s):  
K. Niitsu ◽  
T. Tanigaki ◽  
K. Harada ◽  
D. Shindo
1999 ◽  
Vol 85 (2) ◽  
pp. 722-727 ◽  
Author(s):  
Jutta Chrosch ◽  
Ekhard K. H. Salje

1992 ◽  
Vol 284 ◽  
Author(s):  
Xiao Zhang ◽  
David C. Joy

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.


2007 ◽  
Vol 101 (9) ◽  
pp. 09F504 ◽  
Author(s):  
Se Dong Kim ◽  
Byong Sun Chun ◽  
Young Keun Kim

2005 ◽  
Vol 72 (10) ◽  
Author(s):  
S. Bodea ◽  
W. Wulfhekel ◽  
J. Kirschner

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

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