Brillouin Light Scattering Study on Magnetization Dynamics in Superparamagnetic Co–Al–O Granular Films Down to 15 K

2020 ◽  
Vol 89 (6) ◽  
pp. 064701
Author(s):  
Akira Yoshihara ◽  
Satoshi Kawamura ◽  
Shintaro Nakamura ◽  
Tsutomu Nojima ◽  
Shigehiro Ohnuma
2018 ◽  
Vol 87 (4) ◽  
pp. 044707 ◽  
Author(s):  
Akira Yoshihara ◽  
Toshiteru Maeda ◽  
Satoshi Kawamura ◽  
Shintaro Nakamura ◽  
Tsutomu Nojima ◽  
...  

1999 ◽  
Vol 196-197 ◽  
pp. 67-69
Author(s):  
J.A. Cowen ◽  
J.G. Booth ◽  
J.W. Boyle ◽  
K.M. Booth ◽  
A.D. Boardman ◽  
...  

1997 ◽  
Vol 82 (9) ◽  
pp. 4453-4456 ◽  
Author(s):  
J. W. Boyle ◽  
J. A. Cowen ◽  
K. M. Yasseen ◽  
J. G. Booth ◽  
A. D. Boardman ◽  
...  

1997 ◽  
Vol 475 ◽  
Author(s):  
J.M.V. Ngaboyisonga ◽  
O. Donzelli ◽  
F. Nizzoli ◽  
G. Canotti ◽  
G. Gubbiotti ◽  
...  

ABSTRACTThin films of Ni and Co have been investigated by Brillouin Light Scattering (BLS). The samples, grown by evaporation (Ni) and RF sputtering (Co) on silicon substrates, have thicknesses in the range 16–98 nm. The Damon-Eshbach surface mode and several bulk standing waves have been detected. A macroscopic approach has been adopted in order to calculate the dispersion relations of the spin waves. The method takes into account the dipolar and exchange interactions, together with bulk and surface magnetic anisotropies. The spin waves frequencies and the scattering cross section have been calculated by using the bulk and surface anisotropies as relevant fitting parameters.


RSC Advances ◽  
2016 ◽  
Vol 6 (81) ◽  
pp. 77811-77817 ◽  
Author(s):  
Chandrima Banerjee ◽  
Li Ming Loong ◽  
Shalabh Srivastava ◽  
Semanti Pal ◽  
Xuepeng Qiu ◽  
...  

We used Brillouin light scattering to demonstrate a correlation between the improvement of dynamic magnetic properties and chemical ordering of Co2FeAl0.5Si0.5 Heusler alloy thin films by varying adjacent layers.


2011 ◽  
Vol 357 (2) ◽  
pp. 563-566 ◽  
Author(s):  
B. Ruta ◽  
G. Monaco ◽  
F. Scarponi ◽  
D. Fioretto ◽  
K.S. Andrikopoulos

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