Depth dependence of iron diffusion in Fe3Si studied with nuclear resonant scattering

Daniel Kmiec, Bogdan Sepiol, Marcel Sladecek, Marcus Rennhofer, Svetoslav Stankov, Gero Vogl, Bart Laenens, Johan Meersschaut, Tomasz Ślęzak, and Marcin Zając
Phys. Rev. B 75, 054306 – Published 26 February 2007

Abstract

The access to x-rays of third generation synchrotron radiation sources enables studies of dynamics in metallic systems. The nuclear resonant scattering (NRS) method provides information about elementary atomic jumps. When used in grazing incidence geometry, the sensitivity of the NRS method can be tuned to the surface region. This makes the method especially useful for thin film investigations. Contrary to other surface sensitive methods this technique is not only limited to the surface itself: it allows to retrieve the depth profile of diffusivity from the surface down to the bulk region of the measured sample. Fe-Si intermetallic films with a D03 structure and close to the stoichiometric Fe3Si composition have been prepared on an MgO (100) substrate. The NRS measurements in grazing incidence geometry yielded maximum iron diffusivity at the surface and diminishing continuously with the depth. The depth and temperature dependence have been measured and compared with the bulk values.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 12 September 2006

DOI:https://doi.org/10.1103/PhysRevB.75.054306

©2007 American Physical Society

Authors & Affiliations

Daniel Kmiec*, Bogdan Sepiol, Marcel Sladecek, Marcus Rennhofer, Svetoslav Stankov, and Gero Vogl

  • Fakultät für Physik, Universität Wien, Strudlhofgasse 4, A-1090 Wien, Austria

Bart Laenens and Johan Meersschaut

  • Institut voor Kern- en Stralingsfysica, K.U. Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium

Tomasz Ślęzak and Marcin Zając

  • Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland

  • *Electronic address: daniel.kmiec@univie.ac.at
  • Also at European Synchrotron Radiation Facility, 6 Rue Jules Horowitz, BP220 38043 Grenoble Cedex, France

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 75, Iss. 5 — 1 February 2007

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×