Please use this identifier to cite or link to this item:
|Type:||Artigo de periódico|
|Title:||Effects Of Dipolar Interactions On The Magnetic Properties Of γ-fe2o3 Nanoparticles In The Blocked State|
|Abstract:||The role played by dipolar interactions in the coercive field and remanence of nanoparticle systems is studied using different concentrations of nearly monodisperse nanoparticles of γ- Fe2 O3. The 9.0 nm particles are isolated by organic encapsulation and diluted in paraffin. Magnetic properties were investigated by means of hysteresis obtained at different temperatures, zero-field-cooled (ZFC) and field-cooled (FC) magnetization curves, and the so-called ΔM technique. The analysis of the experimental data points to the existence of a demagnetizing role played by the dipolar interaction in the coercive field. © 2006 American Institute of Physics.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.