scholarly journals ION BEAM MODIFICATION OF MAGNETIC TUNNEL JUNCTIONS

2020 ◽  
Author(s):  
B. Teixeira ◽  
A. Timopheev ◽  
N. Caçoilo ◽  
S. Auffret ◽  
R. Sousa ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Ferromagnetic Resonance ◽  
Tunnel Junctions ◽  
Ion Beam ◽  
Magnetic Tunnel Junctions ◽  
High Energy ◽  
Tunneling Magnetoresistance ◽  
Ion Beam Modification ◽  
High Energy Ions ◽  
Magnetization Precession

In this work, the effect of bombardment with high-energy ions on the parameters of magnetic tunnel junctions based on CoFeB / MgO, such as magnetic anisotropy, magnetoresistance, and the damping coefficient of magnetization precession, is investigated. The modeling of the ferromagnetic resonance spectra was carried out within the framework of the Smit-Beljers and Landau-Lifshitz-Gilbert formalisms. The ion fluence limit is established, below which a controlled modulation of the magnetic anisotropy is achieved while maintaining a high tunneling magnetoresistance and stable magnetic configuration of the transition

Enhanced tunneling magnetoresistance and perpendicular magnetic anisotropy in Mo/CoFeB/MgO magnetic tunnel junctions

2015 ◽  
Vol 106 (18) ◽  
pp. 182406 ◽  
Author(s):  
H. Almasi ◽  
D. Reifsnyder Hickey ◽  
T. Newhouse-Illige ◽  
M. Xu ◽  
M. R. Rosales ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Perpendicular Magnetic Anisotropy ◽  
Tunneling Magnetoresistance

scholarly journals Surface acoustic wave induced modulation of tunneling magnetoresistance in magnetic tunnel junctions

2021 ◽  
Vol 130 (3) ◽  
pp. 033901
Author(s):  
Dhritiman Bhattacharya ◽  
Peng Sheng ◽  
Md Ahsanul Abeed ◽  
Zhengyang Zhao ◽  
Hongshi Li ◽  
...  
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Tunneling Magnetoresistance ◽  
Wave Induced

MAGNETORESISTANCE IN Fe/MgO/Fe MAGNETIC TUNNEL JUNCTIONS

2007 ◽  
Vol 17 (03) ◽  
pp. 593-598 ◽  
Author(s):  
N. N. BELETSKII ◽  
S. A. BORYSENKO ◽  
V. M. YAKOVENKO ◽  
G. P. BERMAN ◽  
S. A. WOLF
Keyword(s):  
Current Density ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Tunneling Magnetoresistance ◽  
Electron Current ◽  
Ferromagnetic Electrode ◽  
Electron Current Density

The magnetoresistance of Fe/MgO/Fe magnetic tunnel junctions (MTJs) was studied taking into consideration image forces. For MTJs with an MgO insulator, explanations are given of the giant tunneling magnetoresistance (TMR) effect and the effect of the increasing TMR with an increase in MgO insulator thickness. It is demonstrated that the electron current density through MTJs can be high enough to switch the magnetization of a ferromagnetic electrode.

Damping constant in a free layer in nanoscale CoFeB/MgO magnetic tunnel junctions investigated by homodyne-detected ferromagnetic resonance

2016 ◽  
Vol 10 (1) ◽  
pp. 013001 ◽  
Author(s):  
Motoya Shinozaki ◽  
Eriko Hirayama ◽  
Shun Kanai ◽  
Hideo Sato ◽  
Fumihiro Matsukura ◽  
...  
Keyword(s):  
Ferromagnetic Resonance ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Free Layer

Oscillation of giant tunneling magnetoresistance with respect to tunneling barrier thickness in fully epitaxial Fe∕MgO∕Fe magnetic tunnel junctions

2007 ◽  
Vol 90 (25) ◽  
pp. 252506 ◽  
Author(s):  
Rie Matsumoto ◽  
Akio Fukushima ◽  
Taro Nagahama ◽  
Yoshishige Suzuki ◽  
Koji Ando ◽  
...  
Keyword(s):  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Tunneling Magnetoresistance ◽  
Barrier Thickness ◽  
Tunneling Barrier
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