Relative strength of perpendicular magnetic anisotropy at bottom and top interfaces in Pt/Co/MgO trilayers

Hyung Keun Gweon, Sang Ho Lim

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In Pt/Co/MgO trilayers, the contribution to the total perpendicular magnetic anisotropy from the bottom Pt/Co interface is significantly greater than that from the top Co/MgO interface at intermediate annealing temperatures. However, the relative contribution is reversed at the highest annealing temperature examined in this study, 400 °C. These results indicate that as the annealing temperature increases, the quality of the Pt/Co interface deteriorates owing to the intermixing of Pt and Co, whereas the quality of the Co/MgO interface improves as oxygen atoms, which are interpenetrated into the Co layer during the deposition of MgO, are diffused toward the Co/MgO interface.

Original languageEnglish
Article number030301
JournalJapanese Journal of Applied Physics
Volume57
Issue number3
DOIs
Publication statusPublished - 2018 Mar 1

Fingerprint

Magnetic anisotropy
Annealing
anisotropy
annealing
Temperature
Atoms
Oxygen
temperature
oxygen atoms

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Relative strength of perpendicular magnetic anisotropy at bottom and top interfaces in Pt/Co/MgO trilayers. / Gweon, Hyung Keun; Lim, Sang Ho.

In: Japanese Journal of Applied Physics, Vol. 57, No. 3, 030301, 01.03.2018.

Research output: Contribution to journalArticle

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