IFLP 13074
INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
artículos
Título:
Calibration of the isomer shift of the 14.4 keV transition of 57Fe
Autor/es:
A. M. MUDARRA; C. RODRIGUEZ TORRES; L,. A. ERRICO
Revista:
HYPERFINE INTERACTIONS
Editorial:
Springer
Referencias:
Año: 2011 vol. 202 p. 117 - 121
ISSN:
0304-3843
Resumen:
With the aim of calibrating Mössbauer spectroscopic measurements, theelectron contact density was calculated on the Fe nuclear position in various ironcompounds. The full-potential augmented-plane waves plus local orbitals (APW+lo)method within the local-density approximation was used, considering differentapproximations for the exchange and correlation potential. By comparison withexperimental 57Fe Mössbauer data, the calibration constant α relating measuredisomer shifts to the electron contact density was derived. An isomer shift calibrationconstant α = −0.251 a.u.3 mm s−1 has been obtained.
