| Numéro |
J. Phys. Colloques
Volume 40, Numéro C2, Mars 1979
International Conference on The Applications of The Mössbauer Effect
|
|
|---|---|---|
| Page(s) | C2-202 - C2-203 | |
| DOI | https://doi.org/10.1051/jphyscol:1979271 | |
J. Phys. Colloques 40 (1979) C2-202-C2-203
DOI: 10.1051/jphyscol:1979271
57Fe HYPERFINE FIELD DISTRIBUTION IN Co AND Mn SUBSTITUTED INVAR ALLOYS
C. Bansal1, 2 and Girish Chandra11 Tata Institute of Fundamental Research, Homi Bhabha Road, Bombay-400005, India
2 School of Physics, University of Hyderabad, Hyderabad-500001, India.
Résumé
Les spectres d' absorption Mössbauer des alliages Fe0,65 (Ni1-xMnx)0,35 (0 ≤ x ≤ 0,19) et Fe0,65 (Ni1-xCox)0,35 (0 ≤ x ≤ 0,08) ont été obtenus à 80 K et à plus haute température. Le champ hyperfin moyen depend fortement de la concentration en Mn mais il est pratiquement indépendant de la concentration en Co, comme le laissaient attendre les mesures d'aimantation. A partir de ces spectres nous avons calculé la distribution de champ magnétique hyperfin, indépendement des modèles.
Abstract
Mössbauer absorption spectra of alloys Fe0,65 (Ni1-xMnx)0,35 with (0 ≤ x ≤ 0,19) and Fe0,65 (Ni1-xCox)0,35 with 0 ≤ x ≤ 0,08 have been obtained at 80 K and above. Model independent distributions of magnetic hyperfine fields have been calculated from the spectra. The mean hyperfine field is strongly dependent on Mn concentration but practically independent of Co concentration as expected from magnetization data.