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

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′ -Fe 4 N on single-crystal MgO(100) substrates by using dc magnetron sputtering. X-ray diffraction revealed that the sub...

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Bibliographic Details
Published inJournal of the Korean Physical Society Vol. 60; no. 10; pp. 1745 - 1748
Main Authors Atiq, Shahid, Saleem, Murtaza, Ramay, Shahid M., Siddiqi, Saadat A., Sabieh Anwar, M., Shin, Sung-Chul
Format Journal Article
LanguageEnglish
Published Seoul The Korean Physical Society 01.05.2012
Subjects
Mathematical and Computational Physics
Particle and Nuclear Physics
Physics
Physics and Astronomy
Theoretical
Annealing
Epitaxial growth
Surface morphology
Magnetic properties
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Summary: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′ -Fe 4 N 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′ -Fe 4 N. A superconducting interference device was utilized to explore the magnetic and the electrical behaviors of γ′ -Fe 4 N films at low temperatures.
ISSN:0374-4884
1976-8524
DOI:10.3938/jkps.60.1745