Lattice vibrational properties of superconducting Sr2RuO4

The phonon spectrum of Sr2RuO4 superconducting compound is calculated by us ing an unscreened rigid ion model for the first time. The results could not be compared with the experimental measurements as these are not available so far. The calculated values of the "neutron weighted" phonon density of s tates (PDOS), the partial PDOS, the mean squared vibrational amplitudes hav e been also presented. The results bring out the general features of the ph onon spectra and also the details of the participation of different atoms i n the total PDOS, We emphasise for the neutron scattering measurements on t his compound. (C) 1999 Elsevier Science B.V. All rights reserved.