Modified krebs model and its application to fcc cobalt
نویسنده
چکیده
2014 Dispersion frequencies for face centred cobalt have been computed along the principal symmetry directions on the basis of a lattice dynamical model which takes into account central and angular interaction coupling with the first neighbours only. The electron-ion interaction has been described along the lines suggested by Krebs. Ionic pressure has been introduced to maintain the crystal equilibrium. The simple model gives a satisfactory explanation of phonon dispersion curves and a reasonably good agreement with measured data has been obtained. LE JOURNAL DE PHYSIQUE TOME 39, AOÛT 1978, Classification Physics Abstracts 63.20
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