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Physical Properties of Strontium Hexaferrite Nano Magnetic Particles Synthesized by a Sol–Gel Auto-Combustion Process in Presence of Non Ionic Surfactant

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M-type Strontium hexaferrites (SrFe12O19) have been intensively investigated during the last decades due to its technological interest as a permanent magnet, microwave devices and magnetic recording media. In present work, the strontium hexaferrite was synthesized by using a sol–gel auto-combustion method and the influences of the addition of the non ionic surfactant polyoxyethelene (20) sorbitan monoolate (Tween 80) on the synthesis procedure and the physical, magnetic and dielectric properties of the resultant nano particles have been studied. The structural and magnetic characteristics were studied by X-ray diffraction (XRD), Vibrating Sample Magnetometer (VSM), Scanning Electron Microscopy (SEM) and Fourier Transform Infrared (FTIR) techniques. The dielectric measurements were carried out over the frequency range of 2 KHz to 2 MHz at room temperature. It was observed that surfactant controls the growth of particles.
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Keywords: MAGNETIC PROPERTIES; SOL–GEL AUTO COMBUSTION; SRFE12O19 HEXAFERRITE; SURFACTANT; XRD

Document Type: Short Communication

Publication date: June 1, 2012

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  • Nanoscience and Nanotechnology Letters (NNL) is a multidisciplinary peer-reviewed journal consolidating nanoscale research activities in all disciplines of science, engineering and medicine into a single and unique reference source. NNL provides the means for scientists, engineers, medical experts and technocrats to publish original short research articles as communications/letters of important new scientific and technological findings, encompassing the fundamental and applied research in all disciplines of the physical sciences, engineering and medicine.
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