57Fe Mossbauer spectra of bulk and nano-sized NiFe2O4. The high field data gives an unambiguous evidence for (i) the collinear spin structure in bulk and canted spin structure in nano-sized NiFe2O4 and (ii) the system is going from inverse spinel structure to mixed spinel structure as the particle size is reduced
Conversion electron Mossbauer spectra of Fe0.88N0.12 films as a function of isochronal annealing. Quantitative information about various phases formed as a function of annealing temperature is obtained.
Superconducting magnet for low temperature (4.2-300K) high magnetic field (0-7 Tesla) Mossbauer measurements
High temperature 57Fe Mossbauer spectra of multiferroic BiFeO3 showing the antiferromagnetic to paramagnetic transition. One can estimate critical exponents, hyperfine field variation etc., from the data