Low-Temperature Magnetic Properties of Nanocomposites Containing Superparamagnetic Fe_3C Particles

• Authors: B. David , O. Schneeweiss , E. Šantavá , I. Morjan
• Languages of publication: EN

Abstracts

EN

Two nanopowders containing superparamagnetic Fe_3C particles, superparamagnetic Fe_3O_4/γ-Fe_2O_3 particles and carbon black phase were synthesised by the method of laser-induced homogeneous pyrolysis of gaseous precursors. Both were characterised by X-ray diffraction, Mössbauer spectrometry and standard magnetic measurements. The mean crystallite size of Fe_3C was 3 nm for the first sample and 10 nm for the second sample. Mössbauer spectra measured at 27 K and zero-field cooled/field cooled curves measured down to 4 K are reported.

Keywords

EN

81.07.Wx; 75.50.Bb; 75.75.-c

Discipline

• 81.07.Wx: Nanopowders
• 75.75.-c: Magnetic properties of nanostructures
• 75.50.Bb: Fe and its alloys

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2010
• Volume: 118
• Issue: 5
• Pages: 766-767

Dates

published

2010-11

Contributors

author

B. David

• Institute of Physics of Materials, AS CR, Žižkova 22, CZ-61662 Brno, Czech Republic

author

O. Schneeweiss

• Institute of Physics of Materials, AS CR, Žižkova 22, CZ-61662 Brno, Czech Republic

author

E. Šantavá

• Institute of Physics, AS CR, Na Slovance 2, CZ-18221 Praha 8, Czech Republic

author

I. Morjan

• National Institute for Lasers, Plasma and Radiation Physics, P.O. Box MG-36, 077125 Bucharest, Romania

References

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Identifiers

DOI

10.12693/APhysPolA.118.766