Distinctive current-induced magnetization switching in a current-perpendicular-to-plane giant-magnetoresistance nanopillar with a synthetic antiferromagnet free layer

2005 ◽  
Vol 86 (24) ◽  
pp. 242506 ◽  
Author(s):  
T. Ochiai ◽  
Y. Jiang ◽  
A. Hirohata ◽  
N. Tezuka ◽  
S. Sugimoto ◽  
...  
Keyword(s):  
Giant Magnetoresistance ◽  
Free Layer ◽  
Magnetization Switching ◽  
Synthetic Antiferromagnet ◽  
Current Perpendicular To Plane ◽  
A Current

CURRENT DRIVEN SWITCHING IN CoPt/Au/CoPt NANOPILLAR WITH INTERFACE ANISOTROPY

2012 ◽  
Vol 26 (10) ◽  
pp. 1250068 ◽  
Author(s):  
P. SABAREESAN ◽  
M. DANIEL
Keyword(s):  
Switching Time ◽  
Threshold Current ◽  
Threshold Current Density ◽  
Spin Transfer Torque ◽  
Spin Transfer ◽  
Free Layer ◽  
Magnetization Switching ◽  
Switching Dynamics ◽  
A Current ◽  
Interface Anisotropy

Current driven magnetization switching dynamics induced by spin-transfer torque in CoPt / Au / CoPt nanopillar device with interface anisotropy is investigated by solving the Landau–Lifshitz–Gilbert–Slonczewski (LLGS) equation numerically. The switching of magnetization in the free layer CoPt / Au / CoPt nanopillar with a thickness of 3 nm occurs above the threshold current density of 0.84×108 A/cm 2. This reduces to 0.30×108 A/cm 2 when the free CoPt layer of the device has interface anisotropy in it. The presence of interface anisotropy also reduces the magnetization switching time from 8.4 ps to 3.1 ps when the device is operated by a current with a density of 2.78×108 A/cm 2.

Influence of Synthetic Antiferromagnet Free Layer on Current-Perpendicular-to-Plane Spin-Valves

2004 ◽  
Vol 40 (4) ◽  
pp. 2245-2247 ◽  
Author(s):  
Y. Jiang ◽  
S. Abe ◽  
T. Nozaki ◽  
N. Tezuka ◽  
K. Inomata
Keyword(s):  
Spin Valves ◽  
Free Layer ◽  
Synthetic Antiferromagnet ◽  
Current Perpendicular To Plane

Spin transfer switching of current-perpendicular-to-plane giant magnetoresistance with various Gd-Fe free-layer compositions

2012 ◽  
Vol 111 (7) ◽  
pp. 07C911 ◽  
Author(s):  
K. Aoshima ◽  
Y. Hashimoto ◽  
N. Funabashi ◽  
K. Machida ◽  
K. Kuga ◽  
...  
Keyword(s):  
Giant Magnetoresistance ◽  
Spin Transfer ◽  
Free Layer ◽  
Current Perpendicular To Plane
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