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    Investigation Of Structural And Magnetic Properties Of Lanthanum Iron Oxide

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    Akioya_morgan_0755M_10585.pdf (4.698Mb)
    Permanent Link
    http://hdl.handle.net/11603/9901
    Collections
    • MSU Student Collection
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    Author/Creator
    Akioya, Odia
    Date
    2016
    Type of Work
    Text
    theses
    Department
    Electrical and Computer Engineering
    Program
    Master of Science
    Rights
    This item is made available by Morgan State University for personal, educational, and research purposes in accordance with Title 17 of the U.S. Copyright Law. Other uses may require permission from the copyright owner.
    Subjects
    Electromagnetism
    Perovskite
    Electrical engineering
    Materials science
    Annealing of metals
    Abstract
    Lanthanum Iron Oxide (LaFeO3), a rare earth Perovskite magnetic material has shown great potential for industrial applications. This thesis presents an investigation on the influence of thermal annealing on the structural and magnetic properties of bulk samples of this material synthesized by High Energy Ball Milling followed by thermal annealing. X-ray Diffractometer (XRD) and Vibrating Sample Magnetometer (VSM) are instrumental in the structural and magnetic characterization. Findings show that the structural and magnetic properties of bulk LaFeO3 vary at different temperatures. Structural results show that sample is amorphous at lower temperature but polycrystalline at higher temperature. Crystallite size estimated in the nanometric scale increases with respect to increasing temperature. Magnetic Characterization results show that samples annealed at lower temperatures possess stronger magnetization than samples at intermediate temperature due to their difference in grain size and magnetization reversal process. Interestingly, magnetization becomes even stronger in samples annealed at higher temperature because they are fully crystalline with perfectly ordered spins.


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    Growing the Future, Leading the World!


    If you wish to submit a copyright complaint or withdrawal request, please email mdsoar-help@umd.edu.