Contributions of Co and Fe orbitals to perpendicular magnetic anisotropy of MgO/CoFeB bilayers with Ta, W, IrMn, and Ti underlayers

Sanghoon Kim, Seungheon Chris Baek, Mio Ishibashi, Kihiro Yamada, Takuya Taniguchi, Takaya Okuno, Yoshinori Kotani, Tetsuya Nakamura, Kab Jin Kim, Takahiro Moriyama, Byong Guk Park, Teruo Ono

研究成果: Article査読

10 被引用数 (Scopus)

抄録

We study the perpendicular magnetic anisotropy (PMA) of the CoFeB/MgO bilayers in contact with W, Ta, IrMn, and Ti, which have been suggested for use as the spin-orbit-torque-related underlayers. The saturation magnetization of CoFeB depends on the underlayer material used owing to the formation of a dead layer that affects the PMA strength of each film. The X-ray magnetic circular dichroism measurement reveals that interfacial intermixing suppresses only the perpendicular orbital moment of Fe, whereas it simultaneously suppresses both the perpendicular and in-plane orbital moments of Co.

本文言語English
論文番号073006
ジャーナルApplied Physics Express
10
7
DOI
出版ステータスPublished - 2017 7月
外部発表はい

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

フィンガープリント

「Contributions of Co and Fe orbitals to perpendicular magnetic anisotropy of MgO/CoFeB bilayers with Ta, W, IrMn, and Ti underlayers」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル