Epitaxial growth of ferromagnetic CoxFe4-xN thin films on SrTiO3(001) and magnetic properties

Tatsunori Sanai, Keita Ito, Kaoru Toko, Takashi Suemasu

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We formed CoxFe4-xN (0≤x≤2.9) epitaxial thin films on SrTiO3 (001) substrates by molecular beam epitaxy supplying solid Co and Fe and a radio frequency N2 plasma, simultaneously. The composition ratio of Co/Fe in CoxFe4-xN was controlled by changing the weight ratio of Co to Fe flakes in the crucible of the Knudsen cell used. Epitaxial growth of CoxFe4-xN thin films were confirmed by reflection high-energy electron diffraction and θ-2θ X-ray diffraction patterns. Magnetization versus magnetic field curves measured at room temperature using a vibrating sample magnetometer showed that the axis of easy magnetization was changed from [100] to [110] with increasing x in CoxFe4-xN.

Original languageEnglish
Pages (from-to)342-346
Number of pages5
JournalJournal of Crystal Growth
Volume378
DOIs
Publication statusPublished - 2013

Keywords

  • Ferromagnetic materials
  • Molecular beam epitaxy

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

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