Investigation of structural and magnetic properties of nanocrystalline manganese substituted lithium ferrites

Journal Article · Tue Dec 15 00:00:00 EST 2009 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2009.08.034· OSTI ID:21372411

Sankpal, U B; Jadhav, S D ^[1]; Lokhande, P D ^[2]; Jadhav, K M ^[3]; Sasikala, R ^[4]

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1. Department of Chemistry, Shivaji University, Kolhapur 416004, Maharashtra (India)
2. Pune University, Pune, Maharashtra, India. (India)
3. Dr. B.A.Marathwada University, Aurangabad 431004, Maharashtra (India)
4. Chemistry Division, Bhabha Atomic Research Center, Mumbai 400085, Maharashtra (India)

Nanocrystalline manganese substituted lithium ferrites Li{sub 0.5}Fe{sub 2.5-x}Mn{sub x}O{sub 4} (2.5<=x>=0) were prepared by sol-gel auto-combustion method. X-ray diffraction patterns revealed that as the concentration of manganese increased, the cubic phase changed to tetragonal. Magnetic properties were measured by hysteresis loop tracer technique. All the compositions indicated ferrimagnetic nature. The surface morphology of all the samples was studied by using scanning and transmission electron microscopy. The substitution of manganese ions in the lattice affected the structural as well as magnetic properties of spinels. - Graphical abstract: The synthesized nanoparticles shapes, sizes and size dispersibilities were obtained from the transmission electron microscopy (TEM). The TEM micrographs of synthesized samples revealed that, spherical shape with average particle size 50 nm. Selected area electron diffraction pattern (SAED) suggests the polycrystallinity and also the formation of spinel ferrites.

• OSTI ID: 21372411
• Journal Information: Journal of Solid State Chemistry, Vol. 182, Issue 12; Other Information: DOI: 10.1016/j.jssc.2009.08.034; PII: S0022-4596(09)00420-4; Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
ELECTRON DIFFRACTION
FERRITES
LITHIUM COMPOUNDS
MAGNETIC PROPERTIES
MANGANESE COMPOUNDS
NANOSTRUCTURES
SOL-GEL PROCESS
SPINELS
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION
ALKALI METAL COMPOUNDS
COHERENT SCATTERING
DIFFRACTION
ELECTRON MICROSCOPY
FERRIMAGNETIC MATERIALS
IRON COMPOUNDS
MAGNETIC MATERIALS
MATERIALS
MICROSCOPY
MINERALS
OXIDE MINERALS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SCATTERING
TRANSITION ELEMENT COMPOUNDS