Determination of the hyperfine parameters of iron silicides by angle dependent conversion electron Mössbauer spectroscopy on single crystals


Determination of the hyperfine parameters of iron silicides by angle dependent conversion electron Mössbauer spectroscopy on single crystals

Reuther, H.; Behr, G.

The Mössbauer spectra of single crystals of the iron silicides e-FeSi, ß-FeSi2 and a-FeSi2 are collected by conversion electron Mössbauer spectroscopy at room temperature. Measurements were performed at different angles between the propagation direction of the exciting g-radiation and the crystal axis of the single crystals.
The hyperfine parameters are determined with high accuracy. Moreover, the signs of the quadrupole splittings and the direction of the main axis of the electric field gradient in regard to the crystal orientation was determined for the disilicides. For the monosilicide, this was impossible because of the particular crystal symmetry.

Keywords: Silicides; Mössbauer Spectroscopy

  • Hyperfine Interactions 141/142 (2002) 435-439

Permalink: https://www.hzdr.de/publications/Publ-4099
Publ.-Id: 4099