Interlayer exchange coupling between [Pd/Co] multilayers and CoFeB/MgO layers with perpendicular magnetic anisotropy

J. H. Jung; S. H. Lim; S. R. Lee

doi:10.1063/1.4770300

Interlayer exchange coupling between [Pd/Co] multilayers and CoFeB/MgO layers with perpendicular magnetic anisotropy

J. H. Jung, S. H. Lim, S. R. Lee

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

Interlayer exchange coupling between [Pd/Co] multilayers and CoFeB/MgO layers with perpendicular magnetic anisotropy (PMA) is investigated as functions of the thicknesses of the Ru spacer and CoFeB layer. The dependence of the coupling behavior on the Ru thickness is similar to that of in-plane anisotropy systems. However, one feature is that the PMA is strengthened through interlayer exchange coupling, as indicated by the fact that PMA of the interface-based CoFeB/MgO structure forms for a thick magnetic layer (1.4nm). Another observation is the conversion from perpendicular to in-plane anisotropy with thick Ru spacers with almost zero exchange coupling strength.

Original language	English
Article number	242403
Journal	Applied Physics Letters
Volume	101
Issue number	24
DOIs	https://doi.org/10.1063/1.4770300
Publication status	Published - 2012 Dec 10

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (2011-0028163).

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Interlayer exchange coupling between [Pd/Co] multilayers and CoFeB/MgO layers with perpendicular magnetic anisotropy",

abstract = "Interlayer exchange coupling between [Pd/Co] multilayers and CoFeB/MgO layers with perpendicular magnetic anisotropy (PMA) is investigated as functions of the thicknesses of the Ru spacer and CoFeB layer. The dependence of the coupling behavior on the Ru thickness is similar to that of in-plane anisotropy systems. However, one feature is that the PMA is strengthened through interlayer exchange coupling, as indicated by the fact that PMA of the interface-based CoFeB/MgO structure forms for a thick magnetic layer (1.4nm). Another observation is the conversion from perpendicular to in-plane anisotropy with thick Ru spacers with almost zero exchange coupling strength.",

author = "Jung, {J. H.} and Lim, {S. H.} and Lee, {S. R.}",

note = "Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (2011-0028163).",

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language = "English",

volume = "101",

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publisher = "American Institute of Physics",

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T1 - Interlayer exchange coupling between [Pd/Co] multilayers and CoFeB/MgO layers with perpendicular magnetic anisotropy

AU - Jung, J. H.

AU - Lim, S. H.

AU - Lee, S. R.

N1 - Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (2011-0028163).

PY - 2012/12/10

Y1 - 2012/12/10

N2 - Interlayer exchange coupling between [Pd/Co] multilayers and CoFeB/MgO layers with perpendicular magnetic anisotropy (PMA) is investigated as functions of the thicknesses of the Ru spacer and CoFeB layer. The dependence of the coupling behavior on the Ru thickness is similar to that of in-plane anisotropy systems. However, one feature is that the PMA is strengthened through interlayer exchange coupling, as indicated by the fact that PMA of the interface-based CoFeB/MgO structure forms for a thick magnetic layer (1.4nm). Another observation is the conversion from perpendicular to in-plane anisotropy with thick Ru spacers with almost zero exchange coupling strength.

AB - Interlayer exchange coupling between [Pd/Co] multilayers and CoFeB/MgO layers with perpendicular magnetic anisotropy (PMA) is investigated as functions of the thicknesses of the Ru spacer and CoFeB layer. The dependence of the coupling behavior on the Ru thickness is similar to that of in-plane anisotropy systems. However, one feature is that the PMA is strengthened through interlayer exchange coupling, as indicated by the fact that PMA of the interface-based CoFeB/MgO structure forms for a thick magnetic layer (1.4nm). Another observation is the conversion from perpendicular to in-plane anisotropy with thick Ru spacers with almost zero exchange coupling strength.

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Interlayer exchange coupling between [Pd/Co] multilayers and CoFeB/MgO layers with perpendicular magnetic anisotropy

Abstract

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