scholarly journals Sign of tunnel spin polarization of low-work-function Gd/Co nanolayers in a magnetic tunnel junction

2008 ◽  
Vol 78 (21) ◽  
Author(s):  
B. C. Min ◽  
J. C. Lodder ◽  
R. Jansen
2005 ◽  
Vol 475-479 ◽  
pp. 3909-3914
Author(s):  
Yuan Zhou ◽  
Xiao Fang Bi ◽  
Jia Xiang Shang ◽  
Hui Bin Xu

A series models of Ni3Fe/Al2O3/Ni3Fe magnetic tunnel junction with Al-terminated interfaces have been established for investigating the influence of ferromagnetic layer thickness on the electronic structure, employing first-principle methods based on local spin-density approximation theory. The spin polarization of the interfacial Ni3Fe monolayer shows a maximum value as the thickness of ferromagnetic layer increases. The Al monolayers at the ferromagnetic/insulating interface and the O monolayer in the interior of insulating layer are also studied in terms of the change of spin polarization with the ferromagnetic layer thickness. In addition, we have found that the structure of Ni3Fe monolayer has a great influence on the spin polarization.


2007 ◽  
Vol 91 (19) ◽  
pp. 192504 ◽  
Author(s):  
Y. Ishii ◽  
H. Yamada ◽  
H. Sato ◽  
H. Akoh ◽  
M. Kawasaki ◽  
...  

2008 ◽  
Vol 8 (4) ◽  
pp. 2016-2021 ◽  
Author(s):  
Chiho Kim ◽  
Yong-Chae Chung

Using ab initio method based on the density functional theory, the equilibrium bcc-Co(001)/rocksalt-MgO(001)/bcc-Co(001) magnetic tunnel junction structure was investigated. Spin polarization and magnetic moment were calculated for each atomic slab in the equilibrium structure by spin dependent density of states analysis. Interfacial Co atoms showed significantly larger spin polarization of –88.3%, compared to the value of inner Co slabs, –82.3%, and bulk bcc Co, –82.1%. Interestingly, Mg and O atoms also showed induced spin polarizability ranged from –45.0% to –66.0%, except for O atoms in the centered slab of barrier layer, which showed relatively small polarization, –14.9%. Magnetic moments for the electrode Co atoms were calculated to be ∼1.74 μB with no significant variation across the electrode.


2021 ◽  
pp. 1-1
Author(s):  
E. Monteblanco ◽  
A. Solignac ◽  
C. Chopin ◽  
J. Moulin ◽  
P. Belliot ◽  
...  

2021 ◽  
Vol 4 (6) ◽  
pp. 392-398 ◽  
Author(s):  
E. Raymenants ◽  
O. Bultynck ◽  
D. Wan ◽  
T. Devolder ◽  
K. Garello ◽  
...  

2020 ◽  
Vol 2 (12) ◽  
pp. 2070120
Author(s):  
Jeongmin Hong ◽  
Xin Li ◽  
Nuo Xu ◽  
Hong Chen ◽  
Stefano Cabrini ◽  
...  

2021 ◽  
Vol 118 (11) ◽  
pp. 112401
Author(s):  
Mahshid Alamdar ◽  
Thomas Leonard ◽  
Can Cui ◽  
Bishweshwor P. Rimal ◽  
Lin Xue ◽  
...  

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