Original Paper

CEMS Studies of Au/Fe/Au Ultrathin Films and Monoatomic Multilayers

  1. W. Karaś1,
  2. B. Handke1,†,
  3. K. Krop1,
  4. M. Kubik1,
  5. T. Ślęzak1,
  6. N. Spiridis2,
  7. D. Wilgocka-Ślęzak1,
  8. J. Korecki1,†

Article first published online: 28 FEB 2002

DOI: 10.1002/1521-396X(200202)189:2<287::AID-PSSA287>3.0.CO;2-0

Issue

physica status solidi (a)

physica status solidi (a)

Volume 189, Issue 2, pages 287–292, February 2002

Additional Information

How to Cite

Karaś, W., Handke, B., Krop, K., Kubik, M., Ślęzak, T., Spiridis, N., Wilgocka-Ślęzak, D. and Korecki, J. (2002), CEMS Studies of Au/Fe/Au Ultrathin Films and Monoatomic Multilayers. physica status solidi (a), 189: 287–292. doi: 10.1002/1521-396X(200202)189:2<287::AID-PSSA287>3.0.CO;2-0

Author Information

  1. 1

    Faculty of Physics and Nuclear Techniques, University of Mining and Metallurgy, al. Mickiewicza 30, PL-30-059 Kraków, Poland

  2. 2

    Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, ul. Niezapominajek 8, PL-30-239 Kraków, Poland

  1. †

    Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, ul. Niezapominajek 8, PL-30-239 Kraków, Poland

Publication History

  1. Issue published online: 28 FEB 2002
  2. Article first published online: 28 FEB 2002
  3. Manuscript Accepted: 30 SEP 2001
  4. Manuscript Received: 1 MAY 2001

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Keywords:

  • 68.37.Ef;
  • 68.55.Ac;
  • 75.50.Bb;
  • 75.70.Cn;
  • 76.80.+y;
  • S1.1;
  • S1.3

Abstract

Ultrathin Fe(001) films, of 1–3 atomic layers, were grown on the Au(001)-hex surface by molecular beam epitaxy. The film growth was controlled in situ by LEED and STM. At the initial stages of the iron growth, a monolayer of Au automatically diffuses onto the growing Fe film, preventing it from breaking up into islands. Conversion electron Mössbauer spectroscopy (CEMS) reveals considerable Au—Fe intermixing at the interface, which leads to formation of a two-dimensional alloy. The intermixing is also responsible for certain deterioration of the atomic order and the layer sequence in the artificial FeAu alloy obtained by alternative deposition of Fe(001) and Au(001) monolayers. CEMS data for single Fe films and Fe—Au monoatomic superlattices are compared and discussed basing on the FLAPW calculations using WIEN97 code.

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