Hercílio Rodolfo Rechenberg

• Fe magnetic moment at 2a site of antiferromagnetic laves-phase compound (hf, ta) fe2., AR.EXT
• Rare earth effect on the magnetic behavior of r6fe11-xal3+x compounds, AR.EXT

• Abstract

  Our proposal is to use the Mössbauer spectroscopy technique to obtain information of a microscopic character on several kinds of solids. Such information is of a magnetic (hyperfine field), electric (isomer shift, quadrupole interaction) or vibrational (recoil free fraction, 2nd order Doppler shift) nature. The Mössbauer nuclei to be used are 57Fe and 119Sn. Experiments will be carried o…

  Mössbauer Spectroscopy applied to materials investigation, AP.TEM

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• Chemical synthesis and characterization of magnetic nanoparticles, BP.PD

• Abstract

  Nanoparticles of magnetic materials, particularly iron oxides, have been increasing relevant for fundamental magnetism investigations and for biomedical applications. In such studies, the particle size distribution in a given sample (dispersion) must be as narrow as possible, in order to ensure a good control of magnetic properties. In this work we propose to synthesize nanocrystalline sa…

  Synthesis and characterization of monodisperse magnetic nanoparticles, BP.MS