Dear Adnan, Please check the two papers I cited in my earlier message. In the 2014 J. Phys. Condens. Matt. paper , it was shown that U on Ti in SrTiO3 removes the the Gamma point instability and enhances the M-point instability. In the other paper there is more discussion of the effect of U on TiO2 phonons.
Mostafa Youssef MIT
_______________________________________________ Pw_forum mailing list [email protected] http://pwscf.org/mailman/listinfo/pw_forum
