Effect of heat treatment on structural and Mössbauer spectroscopic properties of coprecipitated Mn{sub 0.5}Ni{sub 0.5}Fe{sub 2}O{sub 4} ferrite nanoparticles

Journal Article · Wed Jun 24 00:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4917783· OSTI ID:22490311

Srinivas, Ch.; Babu, Ch. Seshu ^[1]; Tirupanyam, B. V. ^[2]; Meena, S. S. ^[3]

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1. Department of physics, Sasi Institute of Technology and Engineering, Tadepalligudem-534101 (India)
2. Department of physics, Government Arts College (Autonomous), Rajahmundry-533401 (India)
3. Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai-4000085 (India)

Results obtained in a systamatic study by X-ray diffraction and Mösssbauer spectroscopy on the structural and magnetic properties on Mn{sub 0.5}Ni{sub 0.5}Fe{sub 2}O{sub 4} ferrite nanoparticles heat treated at 200 °C, 500 °C and 800 °C are reported. Average crystallite sizes are estimated to be in the range (2.6nm – 12.8nm). It is observed that crystallite sizes increase with increase in sintering temperature and random variation in lattice parameter was observed. At relatively low sintering temperatures the samples exhibit superparamagnetism and complete ferrite phase was observed at higher heat treatment.

• OSTI ID: 22490311
• Journal Information: AIP Conference Proceedings, Vol. 1665, Issue 1; Conference: 59. DAE solid state physics symposium 2014, Tamilnadu (India), 16-20 Dec 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION SPECTROSCOPY
FERRITES
HEAT TREATMENTS
LATTICE PARAMETERS
MAGNETIC PROPERTIES
MANGANESE COMPOUNDS
MOESSBAUER EFFECT
NANOPARTICLES
NICKEL COMPOUNDS
RANDOMNESS
SINTERING
SUPERPARAMAGNETISM
TEMPERATURE DEPENDENCE
X-RAY DIFFRACTION