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Title: 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

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.
Authors:
;  [1] ;  [2] ;  [3] ;  [4]
  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)
  4. Department of physics, Andhra University, Visakhapatnam-530003 (India)
Publication Date:
OSTI Identifier:
22490311
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1665; Journal 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)
Country of Publication:
United States
Language:
English
Subject:
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