Artículos de revistas
Dynamical Study Of Phonons In Pbtio3
Registro en:
Solid State Communications. , v. 40, n. 10, p. 903 - 906, 1981.
381098
10.1016/0038-1098(81)90094-6
2-s2.0-0019713141
Autor
Freire J.D.
Katiyar R.S.
Institución
Resumen
Lattice dynamical formalism, using rigid ion model, was applied to the crystal of PbTiO3 in the tetragonal phase. The model includes long range Coulomb forces and short range axially symectric forces. The radial part of the short range force constants was assumed to be of Born-Meyer type. The parameters of the model were determined through a least squares analysis of zone center and a few zone boundary phonons. Dispersion curves for [100] and [001] directions are presented. © 1981. 40 10 903 906 Burns, Scott, (1973) Physical Review, 7 B, p. 3088 Shirane, Axe, Harada, (1970) Physical Review, 2 B, p. 155 Wyckoff, (1964) Crystals Structures, , Interscience Publishers Casher, Glück, Gur, (1969) The irreducible representations of space groups, , W.A. Benjamin, N. York Born, Huang, (1954) Dynamical Theory of crystal lattices, , Oxford University Press Cowley, (1964) Physical Review, 134 A, p. 981 Katiyar, (1970) Journal of Physics C: Solid State Physics, 3, p. 1963 Frey, Silberman, (1967) Helvetica Physica Acta, 49, p. 1 Last, (1957) Physical Review, 105, p. 1740