University of Connecticut University of UC Title Fallback Connecticut

Phonon Dispersion: SrTiO3

Name Structure and Brillouin Zone Phonon Dispersion Description
Pm3m
(Cubic)
Pm-3m
Brillouin Zone
SrTiO3.cp-relaxed.Ek
  1. SrTiO3 in cubic symmetry has several instabilities
  2. No FerroElectric (FE) or AntiFerroElectric (AFE)
    instabilities at Γ (0,0,0) and X (0.5, 0.5, 0)
    reciprocal points
  3. AntiFerroDistortive (AFD) instabilities at
    M (0.5,0.5,0) and R (0.5,0.5,0.5)
  4. Since there are no FE instabilities,
    SrTiO3 does not exhibit ferroelectric behavior.