TY - JOUR KW - Pulsed laser deposition KW - Transmission electron microscopy KW - Perovskite KW - Lattice constants KW - Electrodes KW - Ferroelectric materials KW - Epitaxial growth KW - Heterojunctions KW - Capacitors KW - Compressive strain KW - Thick films KW - Electrostatics KW - Ultrathin films KW - Lattice mismatch KW - Pulsed polarization KW - Switched polarization KW - Cathode ray oscilloscopes KW - Photoresists KW - Superconducting transition temperature AU - V Nagarajan AU - S Prasertchoung AU - T Zhao AU - H Zheng AU - J Ouyang AU - Ramamoorthy Ramesh AU - W Tian AU - X.Q Pan AU - D.M Kim AU - C.B Eom AU - H Kohlstedt AU - R Waser AB - The thickness scaling effect in PbZr 0.2Ti 0.8O 3 heterostructures was investigated. A systematic quantitative experimental study of the thickness dependence of switched polarization in (001) epitaxial PZT films, 4 to 80 nm thick was also shown. The experiment was focused on the PZT composition since it had an in-plane lattice parameter. A preliminary model based on a modified Landau Ginzburg approach suggested that the nature of the electrostatics at the ferroelectric-electrode interface played a significant role in the scaling of ferroelectric thin films. BT - Applied Physics Letters DO - 10.1063/1.1765742 LA - eng M1 - 25 N1 - cited By 92 N2 - The thickness scaling effect in PbZr 0.2Ti 0.8O 3 heterostructures was investigated. A systematic quantitative experimental study of the thickness dependence of switched polarization in (001) epitaxial PZT films, 4 to 80 nm thick was also shown. The experiment was focused on the PZT composition since it had an in-plane lattice parameter. A preliminary model based on a modified Landau Ginzburg approach suggested that the nature of the electrostatics at the ferroelectric-electrode interface played a significant role in the scaling of ferroelectric thin films. PY - 2004 SP - 5225 EP - 5227 T2 - Applied Physics Letters TI - Size effects in ultrathin epitaxial ferroelectric heterostructures VL - 84 SN - 00036951 ER -