Issue 33, 2011
From the journal:

Journal of Materials Chemistry

Iron silicide nanoparticles in a SiC/C matrix from organometallic polymers: characterization and magnetic properties

Van An Du,a   Andrey Sidorenko,b   Ole Bethge,c   Silke Paschen,b   Emmerich Bertagnollic  and  Ulrich Schubert*a  

* Corresponding authors

a Institute of Materials Chemistry, Vienna University of Technology, Getreidemarkt 9, Wien, Austria
E-mail: Ulrich.Schubert@tuwien.ac.at

b Institute of Solid State Physics, Vienna University of Technology, Wiedner Hauptstrasse 8-10, Wien, Austria

c Institute of Solid State Electronics, Vienna University of Technology, Floragasse 7, Wien, Austria

Abstract

Thermolysis of poly(ferrocenylsilane) at 1000 °C or poly[{(dimethylsilyl)ferrocenyl}diacetylene] at 850 °C resulted in ferromagnetic Fe3Si nanoparticles, well distributed in a SiC/C matrix. The average size of the formed nanoparticles, their size distribution and their agglomeration behaviour depend on the choice of polymer and the thermolysis conditions. The size-dependent magnetic properties of the nanoparticles were analyzed by SQUID measurements. The smallest Fe3Si nanoparticles (10–30 nm) are single magnetic domain particles with superparamagnetic behaviour.

Graphical abstract: Iron silicide nanoparticles in a SiC/C matrix from organometallic polymers: characterization and magnetic properties

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Article information

DOI
https://doi.org/10.1039/C1JM11099C
Article type
Paper
Submitted
14 Mar 2011
Accepted
31 May 2011
First published
12 Jul 2011

J. Mater. Chem., 2011,21, 12232-12238

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Iron silicide nanoparticles in a SiC/C matrix from organometallic polymers: characterization and magnetic properties

V. A. Du, A. Sidorenko, O. Bethge, S. Paschen, E. Bertagnolli and U. Schubert, J. Mater. Chem., 2011, 21, 12232 DOI: 10.1039/C1JM11099C

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