INVESTIGADORES
RODRIGUEZ TORRES Claudia Elena
artículos
Título:
Calibration of the isomer shift of the 14.4 keV transition of 57Fe
Autor/es:
A. M. MUDARRA NAVARRO; C. E. RODRÍGUEZ TORRES; L. A. ERRICO
Revista:
HYPERFINE INTERACTIONS
Editorial:
Springer Science+Business Media B.V.
Referencias:
Año: 2011 vol. 202 p. 117 - 121
ISSN:
0304-3843
Resumen:
With the aim of calibrating Mössbauer spectroscopic measurements, the electron contact density was calculated on the Fe nuclear position in various iron compounds. The full-potential augmented-plane waves plus local orbitals (APW+lo)method within the local-density approximation was used, considering different approximations for the exchange and correlation potential. By comparison with experimental 57Fe Mössbauer data, the calibration constant α relating measured isomer shifts to the electron contact density was derived. An isomer shift calibration constant α = −0.251 a.u.3 mm s−1 has been obtained.
