Mechanosynthesis, Crystal Structure and Magnetic Characterization of Neodymium Orthoferrite

AUTOR(ES)

Vera Serna, Pedro, García Campos, Cecilio, Sánchez De Jesús, Felix, Bolarín Miró, Ana María, Juanico Lorán, José Antonio, Longwell, Jeffrey

FONTE

Mat. Res.

DATA DE PUBLICAÇÃO

01/03/2016

RESUMO

Neodymium orthoferrite NdFeO3 was obtained at room temperature by mechanosynthesis with a stoichiometric ratio of Nd2O3 and Fe2O3 powders, whereas the traditional synthesis requires a temperature of approximately 1000 °C. The crystal structure was analyzed by X-ray diffraction analysis using Cu radiation and a LynxEye XE detector, whose strong fluorescence filtering enabled a high signal intensity. The analysis indicated that the obtained crystallites were nano-sized. The particle morphology was observed by scanning electron microscopy, and the magnetic saturation was tested by vibrating sample magnetometry. The synthesis of NdFeO3 was detected after a few hours of milling, indicating that the milling imparted mechanical energy to the system.

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