Title of article
EPR and SQUID studies on magnetic properties of SiO2-doped Ni–Zn ferrite nanocomposites
Author/Authors
Wu، نويسنده , , K.H. and Ting، نويسنده , , T.H. and Wang، نويسنده , , G.P. and Yang، نويسنده , , C.C. and McGarvey، نويسنده , , B.R.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2005
Pages
9
From page
2080
To page
2088
Abstract
Effects of the silica content and temperature on the magnetic properties of Ni0.5Zn0.5Fe2O4/SiO2 nanocomposites have been studied by electron paramagnetic resonance (EPR) and superconducting quantum interference device (SQUID) technique. The content of TEOS in the starting solution affects the interaction between NiZn ferrite and silica, and then determines the particle size and the EPR properties. In addition, the SQUID properties of the composites were sensitive to particle size. It was observed that the saturation magnetization (Ms), remnant magnetization (Mr) and initial susceptibility (χi) decreased with increasing SiO2 content.
Keywords
A. Magnetic materials , A. Nanostructures , B. Sol–gel chemistry , D. electronic paramagnetic resonance (EPR) , D. Magnetic properties
Journal title
Materials Research Bulletin
Serial Year
2005
Journal title
Materials Research Bulletin
Record number
2097388
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