Room temperature ferromagnetic behavior of manganese/manganese oxides nanocomposites

[Display omitted] •Mn/Mn3O4 were synthesized from the reaction of KMnO4 and glycerol solutions.•Mn/Mn5O8 and Mn/Mn2O3 were obtained on the basis of calcination temperature.•Mn/Mn5O8 nanocomposite shows room temperature ferromagnetic property. Three different manganese oxide nanocomposites such as Mn...

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Bibliographic Details
Published in:Materials letters 2019-03, Vol.238, p.151-154
Main Authors: Ullah, A.K.M. Atique, Hossain, A., Akter, M., Kabir, M.F., Khan, M.N.I., Kibria, A.K.M. Fazle, Firoz, Shakhawat H.
Format: Article
Language:English
Subjects:
Antiferromagnetism
Dielectric constant
Ferromagnetism
Magnetic permeability
Magnetic properties
Magnetic property
Magnetism
Manganese oxides
Materials science
MnOx
Nanocomposites
Nanoparticles
Nanorods
Room temperature
Synthesis
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Summary:[Display omitted] •Mn/Mn3O4 were synthesized from the reaction of KMnO4 and glycerol solutions.•Mn/Mn5O8 and Mn/Mn2O3 were obtained on the basis of calcination temperature.•Mn/Mn5O8 nanocomposite shows room temperature ferromagnetic property. Three different manganese oxide nanocomposites such as Mn3O4, Mn5O8, and Mn2O3 along with metallic-Mn were synthesized via a single route depending on calcination temperature. Structural, electrical, and magnetic properties were assessed for the synthesized nanocomposites. The real and imaginary parts of dielectric constants decreased at the lower frequency and then remained constant at the higher frequency for all the three types of nanocomposites. The permeability of the nanocomposites also followed the same order. Mn/Mn5O8 nanorods showed strong ferromagnetic behavior at room temperature although Mn-nanoparticles and Mn5O8 are paramagnetic and antiferromagnetic in nature respectively.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2018.12.003