- Turkish Journal of Physics
- Vol: 25 Issue: 4
- The Lattice Dynamics and The Elastic Behaviour of fcc and bcc Ba
The Lattice Dynamics and The Elastic Behaviour of fcc and bcc Ba
Authors : Yasemin Öztekin Çiftci, Kemal Çolakoğlu
Pages : 363-367
View : 10 | Download : 4
Publication Date : 9999-12-31
Article Type : Makaleler
Abstract :The two-body pairwise E.G.E.P. (Extended Generalized Exponantial Potential) type Morse potential and volume dependent energy are assumed to represent the total energy of the Ba crystal. The parametrized potential is used to calculate the second- and third-order elastic constants Cij and Cijk, pressure derivatives of bulk moduli and Grüneisen parameter g . The phonon frequencies are also computed and plotted. The obtained results are compared with available experimental data and, in general, the agreement is good.Keywords : Turk. J. Phys., 25, (2001), 363-367. Full text: pdf Other articles published in the same issue: Turk. J. Phys., vol.25, iss.4.