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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/31705
Title: 
Ashcroft model potential study of lattice dynamics of α-iron and barium
Author(s): 
Institution: 
  • Universidade Estadual de Campinas (UNICAMP)
  • Universidade Estadual Paulista (UNESP)
ISSN: 
0035-001X
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 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.
Issue Date: 
1-Feb-1999
Citation: 
Revista Mexicana de Física. Coyoacan: Sociedad Mexicana de Física, v. 45, n. 1, p. 31-33, 1999.
Time Duration: 
31-33
Publisher: 
Sociedad Mexicana de Física
Keywords: 
  • Ashcroft potential
  • Lattice dynamics
  • α-iron
  • Barium
  • Potencial de Ashroft
  • Dinámica de redes
  • α-acero
  • Bario
Source: 
http://rmf.smf.mx/pdf/rmf/45/1/45_1_31.pdf
URI: 
Access Rights: 
Acesso aberto
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/31705
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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