Growth and magnetic properties of ultrathin single crystal Fe3O4 film on InAs(100)

Zhaocong Huang, Ya Zhai*, Yongbing Xu, Jing Wu, Sarah M. Thompson, S. N. Holmes

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Different thickness of ultrathin films of magnetite (Fe3O4) have been grown epitaxially on zinc-blende narrow band-gap semiconductor InAs(100) surfaces by in situ post-growth annealing of ultrathin epitaxial Fe films at 300 degrees C in an oxygen partial pressure of 5 x 10(-5) mbar. Reflection high-energy electron-diffraction patterns show that the epitaxial Fe3O4 films have been rotated by 458 in-plane to match the InAs substrates. The magnetic hysteresis loops obtained by magneto-optic Kerr effect (MOKE) shows a in-plane uniaxial magnetic anisotropy for the ultrathin films, and the global easy axis is rotated from the uniaxial easy [011] direction to the cubic easy [010] direction when the thickness of the film increases. (C) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Original languageEnglish
Pages (from-to)2377-2379
Number of pages3
JournalPhysica status solidi a-Applications and materials science
Issue number10
Publication statusPublished - Oct 2011


  • uniaxial anisotropy
  • epitaxial growth
  • magnetite
  • magnetic properties

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