In-plane anisotropy of a nano-scaled magnetic tunnel junction with perpendicular magnetic easy axis

Eriko Hirayama, Shun Kanai, Koji Sato, Michihiko Yamanouchi, Hideo Sato, Shoji Ikeda, Fumihiro Matsukura, Hideo Ohno

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

We investigate magnetic properties of a 100-nm-diameter CoFeB/MgO magnetic tunnel junction (MTJ) with perpendicular magnetic easy axis by homodyne-detected ferromagnetic resonance (FMR) and junction resistance measurements. The resonant frequency depends clearly on the direction of the in-plane magnetic field, which is also the case for the angle dependence of the junction resistance. A good correspondence between the two independent measurements indicates the presence of unintentionally introduced in-plane magnetic anisotropy in the present MTJ.

Original languageEnglish
Article number04DM03
JournalJapanese journal of applied physics
Volume54
Issue number4
DOIs
Publication statusPublished - 2015 Apr 1

ASJC Scopus subject areas

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

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