Ashcroft model potential study of lattice dynamics of α-Iron and barium
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Abstract
Ashcroft model potential has been used to compute phonon dispersion relations along the three principal symmetry directions, i.e. [k00], [kk0] and [kkk] for α-iron and barium. The computed phonons gave a reasonable agreement with the experimental ones in all the three principal summetry directions expect for the T2 branch in [KK0] direction where the present study failed to reproduce the experimental findings.
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Ashcroft potential, Barium, Lattice dynamics, α-iron
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English
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Revista Mexicana de Fisica, v. 45, n. 1, p. 31-33, 1999.
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