[Co/Ni]-CoFeB hybrid free layer stack materials for high density magnetic random access memory applications

2016 ◽  
Vol 108 (13) ◽  
pp. 132405 ◽  
Author(s):  
E. Liu ◽  
J. Swerts ◽  
S. Couet ◽  
S. Mertens ◽  
Y. Tomczak ◽  
...  
2006 ◽  
Vol 99 (8) ◽  
pp. 08C911 ◽  
Author(s):  
Takashi Takenaga ◽  
Takeharu Kuroiwa ◽  
Taisuke Furukawa ◽  
Masakazu Taki ◽  
Kiichi Yoshiara ◽  
...  

Author(s):  
Takanori Matsuki ◽  
Shinichi Warisawa ◽  
Ichiro Yamada

The recent advances in nanofabrication techniques have made it possible to engineer the magnetic and transport properties of thin magnetic films. The ability to design magnetic behavior is useful for technologies such as development of high-density hard disk drive (HDD) or magnetic random access memory (MRAM). In order to achieve high density in HDD, it is necessary to overcome the limit of super-paramagnetic effect. One way to solve this problem is to increase the anisotropic effect that can resist the external field and provide a net magnetic moment in remanence[1].


2014 ◽  
Vol 28 (12) ◽  
pp. 1430005 ◽  
Author(s):  
Huanlong Liu

Spin-transfer magnetic random access memory (MRAM) devices with a polarizing layer magnetized perpendicular to the free and the reference layers are believed to improve the writing performance by inducing a large spin-transfer torque on the free layer at the beginning of the switching process. Experimental realizations of such devices, both with all-metal structures and magnetic tunnel junctions have been made. Faster switching with less energy cost in the orthogonal devices has been achieved comparing to their collinear counterparts. In addition, the processional switching process in such devices has been demonstrated in both statistical and time-resolved measurements. Although further theoretical and material studies are needed for thorough understanding of the switching process and improving the device performance, the orthogonal MRAM devices hold great potential for memory applications operating at low temperatures as well as those that require fast writing speed.


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