Dear All If we have a negative total polarization (by nscf+lberry),has it meaning? This happens, for example, in strain study of tetragonal perovskites. if it has meaning, what does it mean, physically? I have some problem with negative polarization !!!!
Regards Mojtaba Mirseraji Ph.D. Candidate Theoretical Condensed Matter Physics Arak University I.R.IRAN _______________________________________________ Pw_forum mailing list [email protected] http://pwscf.org/mailman/listinfo/pw_forum
