Strain and vacancy clusters behavior of polycrystalline V- and W-doped Ba[Zr0.10Ti0.90]O3, (BZT:2%V) and (BZT:2%W) ceramics obtained by the mixed oxide method was evaluated. Substitution of V and W reduces the distortion of octahedral clusters, decreasing the Raman modes. Electron paramagnetic resonance data indicate that the addition of dopants led to defects and symmetry changes in the BZT lattice. Remnant polarization and coercive field were affected by V and W substitution due the electron-relaxation mode. The unipolar strain E curves as a function of electric field reach its maximum value for BZT:2%V and BZT:2%W ceramics.

Strain and Vacancy Cluster Behavior of Vanadium and Tungsten-Doped Ba[Zr0.10Ti0.90]O3 Ceramics. F.Moura, A.Z.Simões, L.S.Cavalcante, M.Zampieri, J.A.Varela, E.Longo, M.A.Zaghete, M.L.Simões: Applied Physics Letters, 2008, 92[3], 032905