Jy. Zhao et al., X-RAY CHARACTERIZATION OF ALPHA-FE2O3 SINGLE-CRYSTALS CONTAINING 2.2-PERCENT AND 95-PERCENT FE-57, Journal of synchrotron radiation, 5, 1998, pp. 952-954
alpha-Fe2O3 single crystals containing 2.2% and 95% Fe-57 isotopes wer
e characterized by means of X-ray topography, the diffraction rocking
curve and the integrated intensity. These crystals were revealed to be
nearly perfect and suitable for a further nuclear-resonant Bragg-scat
tering study.