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http://acervodigital.unesp.br/handle/11449/31705
- Title:
- Ashcroft model potential study of lattice dynamics of α-iron and barium
- Universidade Estadual de Campinas (UNICAMP)
- Universidade Estadual Paulista (UNESP)
- 0035-001X
- Ashcroft model potential has been used to compute phonon dispersion relations along the three principal symmetry directions, i.e. [k00], [kk0] and [kkk] for alpha-iron and barium. The computed phonons gave a reasonable agreement with the experimental ones in all the three principal summetry directions expect for the T-2 branch in [KK0] direction where the present study failed to reproduce the experimental findings.
- Se ha empleado el modelo de potencial de Ashroft para evaluar las relaciones de dispersión de fonón para o-acero y bario en tres direcciones principales de simetría: [kOO]. [kkO] y [kkk]. Los fonones evaluados coincidieron razonablemente con los obtenidos experimentalmente en las tres direcciones principales. excepto para la rama T2 en la dirección [KKO]. donde el presente estudio no ha reproducido los resultados experimentales.
- 1-Feb-1999
- Revista Mexicana de Física. Coyoacan: Sociedad Mexicana de Física, v. 45, n. 1, p. 31-33, 1999.
- 31-33
- Sociedad Mexicana de Física
- Ashcroft potential
- Lattice dynamics
- α-iron
- Barium
- Potencial de Ashroft
- Dinámica de redes
- α-acero
- Bario
- http://rmf.smf.mx/pdf/rmf/45/1/45_1_31.pdf
- Acesso aberto
- outro
- http://repositorio.unesp.br/handle/11449/31705
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