TY - JOUR AU - C.S Ganpule AU - V Nagarajan AU - S.B Ogale AU - A.L Roytburd AU - E.D Williams AU - Ramamoorthy Ramesh AB - The time-dependent relaxation of the remanent polarization in epitaxial lead zirconate titanate (PbZr0.2Ti0.8O3) ferroelectric thin films, containing a uniform two-dimensional grid of 90° domains (c axis in the plane of the film), is examined using piezoresponse microscopy. The 90° domain walls preferentially nucleate the 180° reverse domains during relaxation, with a significant directional anisotropy. Relaxation occurs through the nucleation and growth of reverse domains, which subsequently coalesce and consume the entire region as a function of time. © 2000 American Institute of Physics. BT - Applied Physics Letters DO - 10.1063/1.1322051 LA - eng M1 - 20 N1 - cited By 79 N2 - The time-dependent relaxation of the remanent polarization in epitaxial lead zirconate titanate (PbZr0.2Ti0.8O3) ferroelectric thin films, containing a uniform two-dimensional grid of 90° domains (c axis in the plane of the film), is examined using piezoresponse microscopy. The 90° domain walls preferentially nucleate the 180° reverse domains during relaxation, with a significant directional anisotropy. Relaxation occurs through the nucleation and growth of reverse domains, which subsequently coalesce and consume the entire region as a function of time. © 2000 American Institute of Physics. PB - American Institute of Physics Inc. PY - 2000 SP - 3275 EP - 3277 T2 - Applied Physics Letters TI - Domain nucleation and relaxation kinetics in ferroelectric thin films VL - 77 SN - 00036951 ER -