01815nas a2200217   4500008004100000022001400041245010800055210006900163260010600232300001400338490000700352520096600359653002301325653002301348653002401371653001901395653001101414100001701425700002501442856013001467       2008                        eng d  a0025-540800aLow temperature synthesis of nanocrystalline lithium ferrite by a modified citrate gel precursor method0 aLow temperature synthesis of nanocrystalline lithium ferrite by   aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcDEC  a3447-34560 v433 a<p>Single phase nanocrystalline lithium ferrite is synthesized by a modified citrate gel precursor technique. Ferrite nanoparticles of average size of 8 nm, obtained after calcination of the citrate gel Made by the usual method at 450 degrees C, show superparamagnetic behavior. However, small amounts of alpha-Fe(2)O(3) is formed as an impurity phase clue to the initial formation of some gamma-Fe(2)O(3) phase. Oil the other hand, when the pH of the mixed Solution is increased to 7 after the addition of ammonia Solution, a lower calcination temperature of 200 degrees C is sufficient for the formation of single phase lithium ferrite nanoparticles of size 30 nm. No impurity phases are detected when the nanocrystalline powders arc calcined at higher temperatures. The magnetic properties of the ferrite nanoparticles of different sizes obtained by calcining the powders at different temperatures are studied. (C) 2008 Elsevier Ltd. All rights reserved.</p>10aChemical synthesis10aMagnetic materials10amagnetic properties10aNanostructures10aOxides1 aVerma, Seema1 aJoy, Pattayil, Alias  uhttps://library.ncl.res.in/content/low-temperature-synthesis-nanocrystalline-lithium-ferrite-modified-citrate-gel-precursor-0