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

T. Y. Lee, Y. C. Won, D. S. Son, Sang Ho Lim, Seong Rae Lee

Research output: Contribution to journalArticle

4 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 languageEnglish
Article number6816093
JournalIEEE Magnetics Letters
Volume5
DOIs
Publication statusPublished - 2014

Fingerprint

Magnetic anisotropy
Anisotropy

Keywords

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

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Strength of Perpendicular Magnetic Anisotropy at Bottom and Top Interfaces in [Pt/Co/Pt] Trilayers. / Lee, T. Y.; Won, Y. C.; Son, D. S.; Lim, Sang Ho; Lee, Seong Rae.

In: IEEE Magnetics Letters, Vol. 5, 6816093, 2014.

Research output: Contribution to journalArticle

@article{49b9b6b5b6544a9da604bc8d9084e6de,
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 = "interfacial anisotropy, Magnetism in solids, perpendicular magnetic anisotropy, Pt/Co/Pt trilayers, thickness effects",
author = "Lee, {T. Y.} and Won, {Y. C.} and Son, {D. S.} and Lim, {Sang Ho} and Lee, {Seong Rae}",
year = "2014",
doi = "10.1109/LMAG.2014.2321350",
language = "English",
volume = "5",
journal = "IEEE Magnetics Letters",
issn = "1949-307X",
publisher = "Institute of Electrical and Electronics Engineers Inc.",

}

TY - JOUR

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, Sang Ho

AU - Lee, Seong Rae

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 - interfacial anisotropy

KW - Magnetism in solids

KW - perpendicular magnetic anisotropy

KW - Pt/Co/Pt trilayers

KW - thickness effects

UR - http://www.scopus.com/inward/record.url?scp=84961266772&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84961266772&partnerID=8YFLogxK

U2 - 10.1109/LMAG.2014.2321350

DO - 10.1109/LMAG.2014.2321350

M3 - Article

AN - SCOPUS:84961266772

VL - 5

JO - IEEE Magnetics Letters

JF - IEEE Magnetics Letters

SN - 1949-307X

M1 - 6816093

ER -