%0 Journal Article %K Transmission electron microscopy %K Degradation %K Nanostructured materials %K Film growth %K Ferroelectric materials %K Piezoelectricity %K Heterojunctions %K Polarization gradients %K Dislocations (crystals) %K Depolarizing fields %K Dislocation density %K Strain field %K Electromagnetic wave polarization %K Thickness measurement %A V Nagarajan %A C.L Jia %A H Kohlstedt %A R Waser %A I.B Misirlioglu %A S.P Alpay %A Ramamoorthy Ramesh %B Applied Physics Letters %D 2005 %G eng %P 1-3 %R 10.1063/1.1922579 %T Misfit dislocations in nanoscale ferroelectric heterostructures %V 86