Low temperature Mössbauer studies on magnetic nanocomposites | Zendy

K. A. Malini | Zendy; M. R. Anantharaman | Zendy; Ajay Gupta | Zendy

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Low temperature Mössbauer studies on magnetic nanocomposites

Author(s) -

K. A. Malini,

M. R. Anantharaman,

Ajay Gupta

Publication year - 2004

Publication title -

bulletin of materials science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.35

H-Index - 72

eISSN - 0973-7669

pISSN - 0250-4707

DOI - 10.1007/bf02704773

Subject(s) - materials science , superparamagnetism , nanocomposite , mössbauer spectroscopy , iron oxide , matrix (chemical analysis) , atmospheric temperature range , phase (matter) , polymer , nuclear magnetic resonance , composite material , chemical engineering , analytical chemistry (journal) , magnetization , metallurgy , crystallography , magnetic field , thermodynamics , organic chemistry , quantum mechanics , engineering , chemistry , physics

Nanocomposites with magnetic components possessing nanometric dimensions, lying in the range 1–10 nm, are found to be exhibiting superior physical properties with respect to their coarser sized counterparts. Magnetic nanocomposites based on gamma iron oxide embedded in a polymer matrix have been prepared and characterized. The behaviour of these samples at low temperatures have been studied using Mössbauer spectroscopy. Mössbauer studies indicate that the composites consist of very fine particles of γ-Fe2O3 of which some amount exists in the superparamagnetic phase. The cycling of the preparative conditions were found to increase the amount of γ-Fe2O3 in the matrix.

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