Epitaxial growth and magnetic characterization of ferromagnetic Co 4N thin films on SrTiO3(001) substrates by molecular beam epitaxy

Keita Ito, Kazunori Harada, Kaoru Toko, Hiro Akinaga, Takashi Suemasu

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

We have attempted to grow single-crystalline Co4N thin films on SrTiO3 (STO)(001) substrates by molecular beam epitaxy by the simultaneous supply of 3NCo and radio-frequency NH3 plasma. Reflection high-energy electron diffraction and θ2θ X-ray diffraction patterns confirmed that the epitaxial growth of Co4N films was successfully achieved. X-ray φ-scan measurements using Co 4N(301) and STO(301) diffractions revealed that the epitaxial relationship between Co4N and STO was a cube-on-cube type. Magnetization versus magnetic field curves measured at room temperature for Co4N epitaxial layers covered with a Au capping layer using a vibrating sample magnetometer showed that Co4N[110] is the axis of easy magnetization.

Original languageEnglish
Pages (from-to)40-43
Number of pages4
JournalJournal of Crystal Growth
Volume336
Issue number1
DOIs
Publication statusPublished - 2011 Dec 1
Externally publishedYes

Keywords

  • A3. Molecular beam epitaxy
  • B1. CoN
  • B1. SrTiO
  • B2. Ferromagnetic material

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

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