Ultrathin films of polycrystalline MnGa alloy with perpendicular magnetic anisotropy

Atsuo Ono, Kazuya Z. Suzuki, Reza Ranjbar, Atsushi Sugihara, Shigemi Mizukami

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

Room temperature growth of textured polycrystalline films of MnGa alloys using a CoGa buffer layer on a thermally oxidized Si substrate is demonstrated. MnGa thin films with a thickness of 2 nm exhibit out-of-plane rectangular hysteresis loops. A small saturation magnetization of about 200 emu/cm3 and a large perpendicular magnetic anisotropy of up to 3-5Merg/cm3 were achieved for 2- and 3-nm-thick MnGa ultrathin films; such values have never been reported before, and they provide a pathway for integration with conventional Si technology.

Original languageEnglish
Article number023005
JournalApplied Physics Express
Volume10
Issue number2
DOIs
Publication statusPublished - 2017 Feb

ASJC Scopus subject areas

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

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