Switching phase diagrams of current-induced magnetization switching in asymmetric MgO-based magnetic tunnel junctions

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We investigated the effect of the free-layer composition and the pattern size of magnetic cell on current-induced magnetization switching in asymmetric MgO-based magnetic tunnel junctions. We found that the normalized switching phase diagrams (SPDs) measured at low temperature are mostly determined by the material composition of ferromagnetic electrodes but are not much sensitive to the intrinsic energy barrier and the anisotropy field of the sample. This experimental result indicates that the normalized SPD can be used to study the fundamental characteristics of spin-transfer torque.
Publisher
IOP PUBLISHING LTD
Issue Date
2011-02
Language
English
Article Type
Article; Proceedings Paper
Citation

JOURNAL OF PHYSICS D-APPLIED PHYSICS, v.44, no.6

ISSN
0022-3727
DOI
10.1088/0022-3727/44/6/064008
URI
http://hdl.handle.net/10203/277638
Appears in Collection
PH-Journal Papers(저널논문)
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