466 citations · 947 across the 4 of their papers we have counts for
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cond-mat.mtrl-sci1999★ 224 cited
A Microscopic Model of Ferroelectricity in Stress-free PbTiO3 Ultrathin Films
Ph. Ghosez, K. M. Rabe
The ground-state polarization of PbTiO3 thin films is studied using a microscopic effective Hamiltonian with parameters obtained from first-principles calculations. Under short-cir…
cond-mat.mtrl-sci1999★ 466 cited
Lattice dynamics of BaTiO3, PbTiO3 and PbZrO3: a comparative first-principles study
Ph. Ghosez, E. Cockayne, U. V. Waghmare +1
The full phonon dispersion relations of lead titanate and lead zirconate in the cubic perovskite structure are computed using first-principles variational density-functional pertur…