TY - CONF AU - S Prosandeev AU - Eric Cockayne AU - Benjamin Burton C2 - Fundamental Physics of Ferroelectrics 2003 | | Fundamental Physics of Ferroelectrics 2003 | AIP DA - 2003-08-01 LA - en M1 - 677 PB - Fundamental Physics of Ferroelectrics 2003 | | Fundamental Physics of Ferroelectrics 2003 | AIP PY - 2003 TI - First Principles Calculations of Ionic Vibrational Frequencies in PbMg⅓Nb⅔0~3 ER -