Journal of the Korean Physical Society

, Volume 60, Issue 10, pp 1745–1748 | Cite as

Enhanced magnetic moment of epitaxial γ′-Fe4N films at low temperature

  • Shahid Atiq
  • Murtaza Saleem
  • Shahid M. Ramay
  • Saadat A. Siddiqi
  • M. Sabieh Anwar
  • Sung-Chul Shin
Article
  • 83 Downloads

Abstract

Ferromagnetic iron nitride has fascinated researchers owing to its amazing magnetic properties for spintronic applications. We have prepared single-phase epitaxial thin films of γ′-Fe4N on single-crystal MgO(100) substrates by using dc magnetron sputtering. X-ray diffraction revealed that the substrate temperature and the annealing time were the most important parameters for single-phase epitaxial growth of the films. Atomic force microscopy and scanning electron microscopy were utilized to investigate the surface morphology of the films. Angle dependent magnetic anisotropy was observed in epitaxial thin films of γ′-Fe4N. A superconducting interference device was utilized to explore the magnetic and the electrical behaviors of γ′-Fe4N films at low temperatures.

Keywords

Epitaxial growth Annealing Surface morphology Magnetic properties 

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Copyright information

© The Korean Physical Society 2012

Authors and Affiliations

  • Shahid Atiq
    • 1
  • Murtaza Saleem
    • 1
  • Shahid M. Ramay
    • 1
  • Saadat A. Siddiqi
    • 2
  • M. Sabieh Anwar
    • 3
  • Sung-Chul Shin
    • 4
  1. 1.Centre of Excellence in Solid State PhysicsUniversity of the PunjabLahorePakistan
  2. 2.Interdisciplinary Research Centre in Biomedical Materials (IRCBM)COMSATS Institute of Information TechnologyLahorePakistan
  3. 3.School of Science and Engineering (SSE)Lahore University of Management Sciences (LUMS), Opposite Sector UD.H.A. Lahore CanttPakistan
  4. 4.Department of Physics and Centre for Nanospinics of Spintronic MaterialsKorea Advanced Institute of Science and Technology (KAIST)DaejeonKorea

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