Carriço, Artur da SilvaBarrio, R. A.Marques, F. C.Sanjurjo, J.Chambouleyron, I.2020-03-302020-03-301989BARIO, R. A.; CARRIÇO, Artur da Silva.; MARQUES, F. C.; SANJURJO, J.; CHAMBOULEYRON, I. Vibrational properties of amorphous Si-N and Ge-N alloys. Journal of Physics: Condensed Matter, v. 1, p. 68-78, 1989. ISSN 0953-8984. DOI: https://doi.org/10.1088/0953-8984/1/1/006. Disponível em: https://iopscience.iop.org/article/10.1088/0953-8984/1/1/006/meta. Acesso em: 30 mar. 2020.https://repositorio.ufrn.br/jspui/handle/123456789/28684A theoretical study of the vibrational density of states of amorphous alloys was developed by applying a simple effective-medium theory with a Born Hamiltonian. This theory is equivalent to the coherent-potential approximation, with the advantage that it is set in real space in a very simple way. With this theory, one can observe the differences in the spectra of amorphous Si and Ge when several concentrations of N atoms are added. The predictions of the theory are compared with data from Raman scattering experiments.Vibrational propertiesAmorphous Si-N and Ge-Narticlehttps://doi.org/10.1088/0953-8984/1/1/006