Strength of Perpendicular Magnetic Anisotropy at Bottom and Top Interfaces in [Pt/Co/Pt] Trilayers

T. Y. Lee; Y. C. Won; D. S. Son; S. H. Lim; S. R. Lee

doi:10.1109/LMAG.2014.2321350

Strength of Perpendicular Magnetic Anisotropy at Bottom and Top Interfaces in [Pt/Co/Pt] Trilayers

T. Y. Lee, Y. C. Won, D. S. Son, S. H. Lim, S. R. Lee

Department of Materials Science and Engineering

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

12 Citations (Scopus)

Abstract

The individual strengths of perpendicular magnetic anisotropy (PMA) at the bottom and top interfaces in sputtered [Pt/Co/Pt] trilayers are determined. The PMA strength from the top Co/Pt interface is significantly weaker than that from the bottom Pt/Co interface, indicating a similar difference in the interface quality. The contribution to the total anisotropy strength from the top Co/Pt interface increases with decreasing top Pt layer thickness; for a stack of Co thickness 1 nm, the contribution is only 10% for a top Pt layer of thickness 3.0 nm, but it increases to 32% for a Pt layer of thickness 0.2 nm.

Original language	English
Article number	6816093
Journal	IEEE Magnetics Letters
Volume	5
DOIs	https://doi.org/10.1109/LMAG.2014.2321350
Publication status	Published - 2014

Keywords

Magnetism in solids
Pt/Co/Pt trilayers
interfacial anisotropy
perpendicular magnetic anisotropy
thickness effects

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials

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10.1109/LMAG.2014.2321350

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title = "Strength of Perpendicular Magnetic Anisotropy at Bottom and Top Interfaces in [Pt/Co/Pt] Trilayers",

abstract = "The individual strengths of perpendicular magnetic anisotropy (PMA) at the bottom and top interfaces in sputtered [Pt/Co/Pt] trilayers are determined. The PMA strength from the top Co/Pt interface is significantly weaker than that from the bottom Pt/Co interface, indicating a similar difference in the interface quality. The contribution to the total anisotropy strength from the top Co/Pt interface increases with decreasing top Pt layer thickness; for a stack of Co thickness 1 nm, the contribution is only 10% for a top Pt layer of thickness 3.0 nm, but it increases to 32% for a Pt layer of thickness 0.2 nm.",

keywords = "Magnetism in solids, Pt/Co/Pt trilayers, interfacial anisotropy, perpendicular magnetic anisotropy, thickness effects",

author = "Lee, {T. Y.} and Won, {Y. C.} and Son, {D. S.} and Lim, {S. H.} and Lee, {S. R.}",

note = "Publisher Copyright: {\textcopyright} 2014 IEEE.",

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language = "English",

volume = "5",

journal = "IEEE Magnetics Letters",

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T1 - Strength of Perpendicular Magnetic Anisotropy at Bottom and Top Interfaces in [Pt/Co/Pt] Trilayers

AU - Lee, T. Y.

AU - Won, Y. C.

AU - Son, D. S.

AU - Lim, S. H.

AU - Lee, S. R.

PY - 2014

Y1 - 2014

N2 - The individual strengths of perpendicular magnetic anisotropy (PMA) at the bottom and top interfaces in sputtered [Pt/Co/Pt] trilayers are determined. The PMA strength from the top Co/Pt interface is significantly weaker than that from the bottom Pt/Co interface, indicating a similar difference in the interface quality. The contribution to the total anisotropy strength from the top Co/Pt interface increases with decreasing top Pt layer thickness; for a stack of Co thickness 1 nm, the contribution is only 10% for a top Pt layer of thickness 3.0 nm, but it increases to 32% for a Pt layer of thickness 0.2 nm.

AB - The individual strengths of perpendicular magnetic anisotropy (PMA) at the bottom and top interfaces in sputtered [Pt/Co/Pt] trilayers are determined. The PMA strength from the top Co/Pt interface is significantly weaker than that from the bottom Pt/Co interface, indicating a similar difference in the interface quality. The contribution to the total anisotropy strength from the top Co/Pt interface increases with decreasing top Pt layer thickness; for a stack of Co thickness 1 nm, the contribution is only 10% for a top Pt layer of thickness 3.0 nm, but it increases to 32% for a Pt layer of thickness 0.2 nm.

KW - Magnetism in solids

KW - Pt/Co/Pt trilayers

KW - interfacial anisotropy

KW - perpendicular magnetic anisotropy

KW - thickness effects

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DO - 10.1109/LMAG.2014.2321350

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SN - 1949-307X

VL - 5

JO - IEEE Magnetics Letters

JF - IEEE Magnetics Letters

M1 - 6816093

ER -

Strength of Perpendicular Magnetic Anisotropy at Bottom and Top Interfaces in [Pt/Co/Pt] Trilayers

Abstract

Keywords

ASJC Scopus subject areas

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