Current-induced magnetization switching with applying magnetic field to hard axis in MgO-based magnetic tunnel junctions

2006 ◽  
Author(s):  
T. Inokuchi ◽  
H. Sugiyama ◽  
Y. Saito ◽  
K. Inomata
Keyword(s):  
Magnetic Field ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Magnetization Switching ◽  
Hard Axis

PATTERNED NANOSCALE MAGNETIC TUNNEL JUNCTIONS WITH DIFFERENT GEOMETRICAL STRUCTURES

SPIN ◽  
2011 ◽  
Vol 01 (01) ◽  
pp. 109-114 ◽  
Author(s):  
Z. C. WEN ◽  
Y. WANG ◽  
G. Q. YU ◽  
H. X. WEI ◽  
B. S. ZHANG ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Critical Current Density ◽  
Tunnel Junctions ◽  
Ring Width ◽  
Magnetic Tunnel Junctions ◽  
Geometrical Shape ◽  
Magnetization Switching ◽  
Geometrical Structures ◽  
Spintronic Devices ◽  
Shape Dependence

In this paper, patterned nanoscale magnetic tunnel junctions (MTJs) with different geometrical structures, including nanodisk (ND), nanoellipse (NE), nanoring (NR) and nanoelliptical ring (NER) with the scale of around 100nm and ring width of around 30nm, were fabricated, respectively. The geometrical-shape dependence of magnetic field-driven and current-induced magnetization switching (CIMS) were studied in the nanoscale magnetic tunnel junctions (MTJs). The NER-MTJs showed robust magnetization switching and low critical current density of CIMS, comparing with other geometrical-shaped MTJs. This may be due to the different distribution of current-induced Oersted field in different geometrical structures, which plays an assisted role in CIMS. The present experiments indicate that NER-MTJs may be one of the promising candidates for the cells of high-density and low-consumption spintronic devices.

Thermal stability and magnetization switching in perpendicular magnetic tunnel junctions

2020 ◽  
Vol 116 (19) ◽  
pp. 192408 ◽  
Author(s):  
I. Volvach ◽  
J. G. Alzate ◽  
Y.-J. Chen ◽  
A. J. Smith ◽  
D. L. Kencke ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Magnetization Switching

Periodic Fluctuations of Switching Probability in Spin-Transfer Magnetization Switching in Magnetic Tunnel Junctions

2018 ◽  
Vol 54 (9) ◽  
pp. 1-5
Author(s):  
Daisuke Saida ◽  
Yuma Jibiki ◽  
Masayuki Takagishi ◽  
Tadaomi Daibou ◽  
Saori Kashiwada ◽  
...  
Keyword(s):  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Spin Transfer ◽  
Magnetization Switching ◽  
Periodic Fluctuations
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