Grain boundary mediated oxidation and interlayer dipolar coupling in a magnetic tunnel junction structure

2003 ◽  
Vol 67 (13) ◽  
Author(s):  
J. W. Freeland ◽  
D. J. Keavney ◽  
R. Winarski ◽  
P. Ryan ◽  
J. M. Slaughter ◽  
...  
Keyword(s):  
Grain Boundary ◽  
Tunnel Junction ◽  
Dipolar Coupling ◽  
Magnetic Tunnel Junction ◽  
Junction Structure ◽  
Mediated Oxidation

Influence of dynamical dipolar coupling on spin-torque-induced excitations in a magnetic tunnel junction nanopillar

2012 ◽  
Vol 111 (7) ◽  
pp. 07C906 ◽  
Author(s):  
Kiwamu Kudo ◽  
Tazumi Nagasawa ◽  
Hirofumi Suto ◽  
Tao Yang ◽  
Koichi Mizushima ◽  
...  
Keyword(s):  
Tunnel Junction ◽  
Dipolar Coupling ◽  
Magnetic Tunnel Junction ◽  
Spin Torque

Interfacial Spin Polarization and Magnetic Structure of Co/MgO/Co Magnetic Tunnel Junction: Ab Initio Calculation

2008 ◽  
Vol 8 (4) ◽  
pp. 2016-2021 ◽  
Author(s):  
Chiho Kim ◽  
Yong-Chae Chung
Keyword(s):  
Ab Initio ◽  
Spin Polarization ◽  
Tunnel Junction ◽  
Density Functional ◽  
Magnetic Moments ◽  
Magnetic Tunnel Junction ◽  
Equilibrium Structure ◽  
The Density Functional Theory ◽  
Spin Polarizability ◽  
Junction Structure

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.

scholarly journals Effect of MgO Underlying Layer on the Growth of GaOx Tunnel Barrier in Epitaxial Fe/GaOx/(MgO)/Fe Magnetic Tunnel Junction Structure

Sensors ◽  
2017 ◽  
Vol 17 (10) ◽  
pp. 2424 ◽  
Author(s):  
Sai Krishna Narayananellore ◽  
Naoki Doko ◽  
Norihiro Matsuo ◽  
Hidekazu Saito ◽  
Shinji Yuasa
Keyword(s):  
Tunnel Junction ◽  
Magnetic Tunnel Junction ◽  
Tunnel Barrier ◽  
Junction Structure

Spin wave resonance detection using magnetic tunnel junction structure

2011 ◽  
Vol 99 (19) ◽  
pp. 192501 ◽  
Author(s):  
Chong Bi ◽  
Xin Fan ◽  
Liqing Pan ◽  
Xiaoming Kou ◽  
Jun Wu ◽  
...  
Keyword(s):  
Spin Wave ◽  
Tunnel Junction ◽  
Magnetic Tunnel Junction ◽  
Spin Wave Resonance ◽  
Wave Resonance ◽  
Resonance Detection ◽  
Junction Structure
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