TITLE

Dynamic dipolar interaction effect on spin-transfer switching with perpendicular anisotropy

AUTHOR(S)
Yongcheng Qiu; Zongzhi Zhang; Jin, Q. Y.; Yaowen Liu
PUB. DATE
August 2009
SOURCE
Applied Physics Letters;8/3/2009, Vol. 95 Issue 5, p052507
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Micromagnetic simulation is employed to study the influence of neighboring cells on spin torque switching in a matrix of nanopillars with perpendicular magnetic anisotropy. We find that with the decreased separation the critical switching current densities can be strongly modified for different matrix configurations as compared to an isolated disk element. Such variations are attributed to the stray fields rather than the resonant effect, although both of them arise from the dipolar interaction between the target and neighboring cells. The Bloch wall mediated switching process is evidenced by the magnetization snapshots, which agrees with the recent experimental results.
ACCESSION #
43594035

 

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