ICAME 2007

1. Front Matter

   Pages i-xix

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2. Preface (ICAME2007)

   • N. S. Gajbhiye, S. K. Date

   Pages 1-3

3. Mössbauer effect: a dual method for myriad applications

   • D. L. Nagy

   Pages 5-13

4. Skutterudites, a thermoelectric material investigated by high field Mössbauer spectroscopy

   • M. Reissner, E. Bauer, W. Steiner, P. Rogl, A. Leithe-Jasper, Yu. Grin

   Pages 15-22

5. Study of nano-scale diffusion in thin films and multilayers

   • Ajay Gupta, Sujoy Chakravarty, Parasmani Rajput, Mukul Gupta, Rudolf Rüffer

   Pages 23-30

6. Iron as a risk factor in neurological diseases

   • Jolanta Galazka-Friedman

   Pages 31-44

7. Mössbauer spectroscopy in studies of photosynthesis

   • Květoslava Burda

   Pages 45-53

8. Iron minerals formed by dissimilatory iron-and sulfur reducing bacteria studied by Mössbauer spectrometry

   • N. I. Chistyakova, V. S. Rusakov, K. A. Nazarova, Yu. A. Koksharov, D. G. Zavarzina, J.-M. Greneche

   Pages 55-63

9. Reaction and deposition of laser-evaporated iron

   • Yasuhiro Yamada, Katuhiro Kouno, Hirokazu Kato, Yoshio Kobayashi

   Pages 65-75

10. Iron chelates: a challenge to chemists and Mössbauer spectroscopists

    • Z. Homonnay, P. Á. Szilágyi, A. Vértes, E. Kuzmann, V. K. Sharma, G. Molnár et al.

    Pages 77-86

11. Mössbauer spectroscopy of magnetic minerals in basalt on Earth and Mars

    • H. P. Gunnlaugsson, H. Rasmussen, L. Kristjánsson, S. Steinthorsson, Ö. Helgason, P. Nørnberg et al.

    Pages 87-101

12. The study of electron transfer in advanced materials (electrodes for Li-ion batteries or catalysts)

    • Jean-Claude Jumas, Manfred Womes, Pierre-Emmanuel Lippens, Josette Olivier-Fourcade

    Pages 103-112

13. Out-of-equilibrium Sm–Fe based phases

    • C. Djéga-Mariadassou, L. Bessais

    Pages 113-123

14. Advantages of Mössbauer polarimetric methods in material studies

    • K. Szymański, D. Satuła, B. Kalska, W. Olszewski, L. Dobrzyński, H. Drulis et al.

    Pages 125-136

15. The effect of adding a bit of Fe to Ag–Ge–Se system

    • Bibiana Arcondo, María Andrea Ureña, Maximiliano Erazú, Javier Rocca, Marcelo Fontana

    Pages 137-147

16. Extraterrestrial Mössbauer spectroscopy: more than 3 years of Mars exploration and developments for future missions

    • Christian Schröder, Göstar Klingelhöfer, Richard V. Morris, Daniel S. Rodionov, Iris Fleischer, Mathias Blumers

    Pages 149-156

17. Scientific opportunities in nuclear resonance spectroscopy from source-driven revolution

    • G. K. Shenoy, R. Röhlsberger

    Pages 157-172

18. A 57Fe Mössbauer spectroscopy study of iron nanoparticles obtained in situ in conversion ferrite electrodes

    • Jean-Claude Jumas, Manfred Womes, Ricardo Alcántara, Pedro Lavela, José L. Tirado

    Pages 173-177

19. Effect of aluminum on the hyperfine field and crystallization behaviour of NANOPERM alloy

    • D. Prabhu, A. Narayanasamy, K. Chattopadhyay

    Pages 179-187

20. Anomalous magnetic behaviour of zinc and chromium ferrites without any hyperfine splitting

    • B. Pandey, H. C. Verma

    Pages 189-196

Disordered nature of structural arrangement in amorphous and nanocrystalline alloys gives rise to advantageous soft magnetic properties in particular from a practical application viewpoint [1]. Especially nanocrystalline alloys attract a lot of scienti?c interest because, contrary to their amorphous counterparts, their magnetic parameters do not substantially deteriorate at elevated temperatures during the process of their practical exploitation. To bene?t from their unique magnetic pr- erties, the mechanism of crystallization should be known. Here, we present the study of structural transformation of NANOPERM-type alloys by the help of Mössbauer spectrometry, conventional X-ray diffraction (XRD), and by an advanced diffraction of synchrotron radiation. 2 Experimental Alloys of the composition Fe Mo Cu B for x = 12, 15, 17, 20 prepared by 91?x 8 1 x 57 rapid quenching on a rotating wheel were analyzed in the as-cast state by Fe transmission Mössbauer spectrometry (TMS) and by conversion electron Mössbauer spectrometry (CEMS). The obtained as-quenched ribbons were about 10 mm wide and 20 ?m thick. The nanocrystalline state was achieved by annealing about 2 cm ? long samples for 1 h at temperatures up to 650 C in a vacuum. Conventional XRD was performed with Cu-K radiation in Bragg-Brentano con?guration with graphite ? monochromator in the diffracted beam. Monochromatic synchrotron radiation of 7keV(? = 0. 178 nm) provided at the KMC-2 beamline at BESSY Berlin was used for in situ examinations of structural transformations during continuous heat treatment.

• Exchange interaction
• Hyperfine interactions
• Mössbauer spectroscopy
• heavy ion
• spectroscopy

• Indian Institute of Technology Kanpur, Kanpur, India

  N. S. Gajbhiye

• University of Pune, Pune, India

  S. K. Date

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