• Fe and N diffusion in nitrogen-rich FeN measured using neutron reflectometry

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    • Keywords

       

      FeN; iron nitride; reactive sputtering; self-diffusion; neutron reflectometry.

    • Abstract

       

      Grazing incidence neutron reflectometry provides an opportunity to measure the depth profile of a thin film sample with a resolution <1 nm, in a non-destructive way. In this way the diffusion across the interfaces can also be measured. In addition, neutrons have contrast among the isotopes, making it feasible to measure the self-diffusion. In the present work, the isotope multilayers of [FeN/57 FeN]10 and [FeN/Fe15N]10 were prepared using magnetron sputtering and self-diffusion of Fe and N was investigated. It was found that N diffusion is slower compared to Fe and does not follow the atomic size dependence.

    • Author Affiliations

       

      Mukul Gupta1 A Gupta2 A Wildes3 T Gutberlet4

      1. UGC-DAE Consortium for Scientific Research, R-5 Shed, Bhabha Atomic Research Centre, Mumbai 400 085, India
      2. UGC-DAE Consortium for Scientific Research, Khandwa Road, Indore 452 017, India
      3. Institut Laue-Langevin, rue des Martyrs, 38042 Grenoble Cedex, France
      4. Laboratory for Neutron Scattering, ETH Zürich and Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland
    • Dates

       
  • Pramana – Journal of Physics | News

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