Microstructure and in-plane component of L10-FePt films deposited on MgO and MgAl2O4 substrates

H. Sepehri-Amin, H. Iwama, T. Ohkubo, T. Shima, K. Hono

研究成果: Article査読

13 被引用数 (Scopus)

抄録

Microstructures of FePt films deposited on MgO and MgAl2O4 single crystalline substrates were studied using aberration corrected scanning transmission electron microscopy (STEM). The [100] and [010] variants of L10-FePt were observed in-the-plane of the FePt grains deposited on the MgAl2O4 substrate, which causes in-plane component in magnetization curves. The d-spacing of the (002) planes of L10-FePt deposited on MgAl2O4 is larger than that deposited on MgO. The reduction of lattice mismatch between FePt and the substrate results in the formation of out-of-plane tensile strain leading to increase in d002 and the formation of the in-plane variants in the L10-FePt grains.

本文言語English
ページ(範囲)247-251
ページ数5
ジャーナルScripta Materialia
130
DOI
出版ステータスPublished - 2017 3月 15
外部発表はい

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学
  • 金属および合金

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