Magnetic domain structure across the austenite–martensite interface in Ni50Mn25Ga20Fe5 single crystalline thin foil

2021 ◽  
Vol 119 (21) ◽  
pp. 212901
Author(s):  
M. Vronka ◽  
L. Straka ◽  
M. Klementová ◽  
O. Heczko
Author(s):  
B. G. Demczyk

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.


2021 ◽  
Vol 863 ◽  
pp. 158555
Author(s):  
Paula G. Saiz ◽  
Jose M. Porro ◽  
Andoni Lasheras ◽  
Roberto Fernández de Luis ◽  
Iban Quintana ◽  
...  

1994 ◽  
Vol 30 (6) ◽  
pp. 4815-4817 ◽  
Author(s):  
S.X. Zhou ◽  
Y.G. Wang ◽  
J.H. Ulvensoen ◽  
R. Hoier

2012 ◽  
Vol 101 (23) ◽  
pp. 232404 ◽  
Author(s):  
Y. Ando ◽  
S. Yamada ◽  
K. Kasahara ◽  
K. Sawano ◽  
M. Miyao ◽  
...  

2011 ◽  
Vol 84 (5) ◽  
Author(s):  
Y. Murakami ◽  
Y. Nii ◽  
T. Arima ◽  
D. Shindo ◽  
K. Yanagisawa ◽  
...  

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