Abstract:The behavior of 57Fe and 57C0 doped $-rhombohedra1 boron was investigated by means of Mossbauer spectroscopy. Samples prepared by diffusing 57Fe at temperatures above 1000 "C and W o a t temperatures of 1500 "C or higher showed a reproducible quadrupole interaction and a strongly anisotropic f-factor. Using combinations of the different parameters obtained from the spectra it was attempted to determine the position of tho impurities. There is some evidence for an incorporation within the 28 atom subgroup. It w… Show more
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