The Contribution of 57Fe Mössbauer Spectrometry to Investigate Magnetic Nanomaterials

Chapter

Abstract

Fe containing nanomaterials and nanoparticles are quite important because their unusual physical properties make them excellent candidates for different applications. 57Fe Mössbauer spectrometry appears as an excellent tool to provide structural and magnetic data through the hyperfine parameters. After a short definition of nanostructures and their main characteristics originated from confinement effects, we established the relevant features to understand nanoscale magnetism. Some examples have been thus selected to illustrate first how Mössbauer spectrometry contributes to understand the chemical, structural and magnetic nature of nanostructures and the role of surface and grain boundaries. Then, they also demonstrate also how the fitting procedure remains a delicate task to model the hyperfine structure and does require on the one hand large experimental data basis obtained from different techniques including structural, morphological and magnetic parameters and on the other hand materials with high knowledge and control of synthesis conditions.

Keywords

Hyperfine Field Hyperfine Structure Quadrupolar Doublet Nanocrystalline Alloy High Energy Ball Milling 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

This chapter reviews partially studies performed for the last 20 years at the NanoMagnetism and Numeric Modelling Group of the Institut des Molécules et Matériaux du Mans, UMR CNRS 6283 (ex Laboratoire de Physique de l’Etat Condensé UMR CNRS 6287). It is a sincere pleasure to thank first Prof N. Randrianantoandro, Dr N. Yaacoub, Dr Y. Labaye, Prof F. Calvayrac, Dr H. Guérault, Dr M. Grafouté and Dr B. Fongang for their respective significant contributions, and Dr A. Slawska-Waniewska, Dr I. Skorvanek, Prof M. Miglierini, Dr J. Degmova, Dr O. Crisan, Prof. J.M. Borrego, Prof. J. S. Blazquez, Dr D. Peddis, Prof G.A. Perez Alcazar, Dr J.F. Valderruten and Prof J. Restrepo during their respective stays at Le Mans. As mentioned in previous sections, the mutual collaboration with many chemistry groups requires large interactive communication to discuss results in order to optimize (nano)materials and to elaborate more complex (nano)architectures: Dr E. Tronc, Prof J.P. Jolivet, Prof C. Chanéac, Prof S. Ammar (Paris), G. Pourroy and S. Begin (Strasbourg).

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© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.Institut des Molécules et Matériaux du MansUMR CNRS 6283Le Mans Cedex 9France

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