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  1. No Access

    Article

    Electric-field dependence of dielectric properties of sol-gel derived Ba(Zr0.2Ti0.8)O3 ceramics

    The effect of a dc bias field on the diffuse phase transition and nonlinear dielectric properties of sol-gel derived Ba(Zr0.2Ti0.8)O3 (BZT) ceramics are investigated. Diffuse phase transitions were observed in BZ...

    X. G. Tang, Q. X. Liu, J. Wang, H. L. W. Chan in Applied Physics A (2009)

  2. No Access

    Article

    Effects of texture on the dielectric properties of Ba(Zr0.2Ti0.8)O3 thin films prepared by pulsed laser deposition

    Ba(Zr0.2Ti0.8)O3 (BZT) thin films were deposited on Pt(111)/Ti/SiO2/Si(100) substrates by a pulsed laser deposition process. The BZT thin films directly grown on annealed and un-annealed Pt/Ti/SiO2/Si substrates ...

    X.G. Tang, X.X. Wang, K.H. Wong, H.L.W. Chan in Applied Physics A (2005)

  3. No Access

    Article

    Characterization of 90° domain structure and polarization switching in Pb(Zr0.4Ti0.6)O3 film by piezoresponse force microscope

    A lead zirconate titanate Pb(Zr0.4Ti0.6)O3 (PZT40/60) film was deposited on a Pt(111)/Ti/SiO2/Si(100) substrate by a sol–gel process followed by thermal annealing at 650 °C for 5 min. Piezoresponse force microsco...

    X. Zhao, J.Y. Dai, X.G. Tang, J. Wang, H.L.W. Chan, C.L. Choy in Applied Physics A (2005)

  4. No Access

    Article

    Effect of excess Bi2O3 on the electrical properties and microstructure of (Bi1/2Na1/2)TiO3 ceramics

    (Bi1/2Na1/2)TiO3 ceramics (BNT) with 0–6 mol % of excess Bi2O3 are prepared by conventional solid-state sintering. The electrical properties of the samples are examined. The addition of excess Bi2O3 reduces the l...

    X.X. Wang, X.G. Tang, K.W. Kwok, H.L.W. Chan, C.L. Choy in Applied Physics A (2005)

  5. No Access

    Article

    Leakage current and pyroelectric properties of compositionally graded (Pb,Ca)TiO3 films

    Highly (100)-oriented, compositionally graded (Pb,Ca)TiO3 (PCT) thin films with a Ca content from 0 to 24 mol % on Pt/Ti/SiO2/Si substrates were prepared by a sol-gel process. The graded structure of the Au/PCT/P...

    X.G. Tang, J. Wang, Y.W. Zhang, H.L.W. Chan, A.L. Ding, C.L. Choy in Applied Physics A (2004)