Magnetic structure of domain walls confined in a nano-oxide layer

Details Magnetic structure of domain walls confined in a nano-oxide layer Magnetic structure of domain walls confined in a nano-oxide layer

2009-01-09

arxiv.org/abs/0901.1189v1

IEEE Trans. Magn. 44, no.11, pp.2616-2619 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

3 pages, 3 figures, proceedings paper of Intermag 2008

Scientific paper

10.1109/TMAG.2008.2003047

In the recent years, a spin-valve was developed with a current-confined-path structure consisting of a non-oxide-layer (NOL). We analyze magnetic structures of the current-confinedpath in the nano-oxide layer sandwiched between ferromagnetic electrodes and clarify the dependency of the magnetic structure on the shape and size of the current-confined-path. Our results of stiffness energy density and thermal stability shows that we should fabricate a CPP spin-valve with narrow current-confinedpaths with large aspect ratio and strong constriction in order to enhance the MR ratio.

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