02032nas a2200313   4500008004100000022001400041245010400055210006900159260007900228300001400307490000700321520096200328653001601290653002701306653001901333653002101352100002001373700002501393700002101418700001401439700002201453700002201475700001701497700001601514700002201530700002301552700001401575856012901589       2008                        eng d  a1044-580300aMossbauer spectroscopic investigations of nanophase iron oxides synthesized by thermal plasma route0 aMossbauer spectroscopic investigations of nanophase iron oxides   a360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USAbELSEVIER SCIENCE INCcSEP  a1215-12200 v593 a<p>Magnetic nanoparticles of iron oxide were synthesized by transferred arc plasma induced gas phase condensation method. Structural, morphological and magnetic studies of the as synthesized powder were carried out using X-ray diffraction, transmission electron microscopy and Mossbauer spectroscopy. These studies have revealed the simultaneous nucleation and condensation of different magnetic phases with a broad size distribution of the nanoparticles which is peaked at 30-50 nm and ranges from 10 nm to 80 nm. 57 Fe Mossbauer spectra recorded at various temperatures (5 K-300 K) in presence of external magnetic field (at 5 K) have suggested the presence of different phases of iron oxide with sizable amounts of gamma-Fe2O3 and alpha-Fe2O3 in addition to Fe3O4. The relative concentrations of these phases have been obtained by a self consistent spectral area analysis and were found to be 44:22:34 (%). (C) 2007 Elsevier Inc. All rights reserved.</p>10airon oxides10aMossbauer spectroscopy10aphase analysis10aplasma synthesis1 aNagar, Harshada1 aKulkarni, Naveen, V.1 aKarmakar, Soumen1 aSahoo, B.1 aBanerjee, Indrani1 aChaudhari, P., S.1 aPasricha, R.1 aDas, A., K.1 aBhoraskar, S., V.1 aDate, Sadgopal, K.1 aKeune, W.  uhttps://library.ncl.res.in/content/mossbauer-spectroscopic-investigations-nanophase-iron-oxides-synthesized-thermal-plasma-0