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Author Zolkepli, M. F. A. ♦ Zainuddin, Z.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ BARIUM COMPOUNDS ♦ FERRITES ♦ GRAIN BOUNDARIES ♦ HYSTERESIS ♦ IMPEDANCE ♦ MAGNESIUM COMPOUNDS ♦ MAGNETIC PROPERTIES ♦ MAGNETIZATION ♦ MHZ RANGE ♦ SCANNING ELECTRON MICROSCOPY ♦ SOL-GEL PROCESS ♦ SOLIDS ♦ TETRAGONAL LATTICES ♦ TITANATES ♦ VIBRATING SAMPLE MAGNETOMETERS ♦ X-RAY DIFFRACTION
Abstract MgFe{sub 2}O{sub 4} was synthesized by using sol-gel auto-combustion technique and coupled with BaTiO{sub 3} using the conventional solid state reaction method with different weight fraction of x = 0.00, 0.02, 0.04, 0.06 and 0.08 to form (1-x)BaTiO{sub 3} - xMgFe{sub 2}O{sub 4} composite. The structure, magnetic properties and complex impedance analysis of the composite samples were studied using X-ray diffraction technique (XRD), scanning electron microscopy (SEM) and vibrating sample magnetometer (VSM) and High-frequency response analyzer (HFRA) respectively. XRD patterns showed a single phase tetragonal BaTiO{sub 3} for each composition due to the very small amount of MgFe{sub 2}O{sub 4}. The hysteresis loop confirmed that the composite has soft magnetic properties by addition of MgFe{sub 2}O{sub 4}. Small coercive field, HC has been recorded and it decreased with the increasing of MgFe{sub 2}O{sub 4} weight fraction. However, magnetization increased when the amount of MgFe{sub 2}O{sub 4} is increased. Impedance analysis conducted in range of 0.1 Hz to 10 MHz showed two depressed semicircle arcs for samples with MgFe{sub 2}O{sub 4} due to the resistive and capacitive behavior of the bulk and grain boundaries of the samples.
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-09-25
Publisher Place United States
Volume Number 1678
Issue Number 1


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