Mixed magnetic phases in Co{sub 3}O{sub 4} nanoparticles synthesized by co-precipitation method

Journal Article · Thu Apr 24 00:00:00 EDT 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4872662· OSTI ID:22269504

Rani, Stuti; Sharma, Yogesh ^[1]

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1. Department of Applied Sciences, I.I.T. Roorkee (Saharanpur Campus), Saharanpur-247001 (India)

In the present manuscript, Co{sub 3}O{sub 4} nanoparticles have been synthesized with the help of co-precipitation method and studied the structural, optical and magnetic properties. X ray diffraction analysis of the synthesized samples reveals the formation of single phase cubic spinel structure with the space group Fd-3m. FESEM and TEM results indicate the formation of nano-sized particles. The optical measurement reveals the two band gaps ∼2.77 and 1.67 eV in the sample. Magnetic measurement shows weak ferromagnetic interaction in Co{sub 3}O{sub 4} along with usual paramagnetic nature at room temperature. However, at low temperatures the sample shows antiferromagnetic interaction. The correlation between the structural and observed magnetic and optical properties of Co{sub 3}O{sub 4} nanoparticles will be described and discussed in this paper.

• OSTI ID: 22269504
• Journal Information: AIP Conference Proceedings, Vol. 1591, Issue 1; Conference: 58. DAE solid state physics symposium 2013, Patiala, Punjab (India), 17-21 Dec 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
ANTIFERROMAGNETISM
COBALT OXIDES
COPRECIPITATION
CORRELATIONS
CUBIC LATTICES
MAGNETIC PROPERTIES
NANOSTRUCTURES
OPTICAL PROPERTIES
PARAMAGNETISM
PARTICLE SIZE
PARTICLES
SCANNING ELECTRON MICROSCOPY
TEMPERATURE DEPENDENCE
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION