Depolarization corrections to the coercive field in thin-film ferroelectrics

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Modern Physics of Ferroelectrics: Essential Background (2007, result): “This led to a focus on the role of the depolarization field in producing apparent size effects, with an analysis by Dawber et al. [ 72 ] showing that the expected thickness dependence of the measured coercive field is due to fixed voltage drops in realistic electrodes, 20 Karin M. Rabe et al.”
Unusual phase transitions in ferroelectric nanodisks and nanorods (2004, background): “One main difference between ferroelectric (FE) nanostructures and (infinite) bulk materials is the existence in the former of depolarizing field, because of the uncompensated charges at the surfac”
Physics of thin-film ferroelectric oxides (2005, methodology): “6 The scaling of coercive field with thickness in ferroelectrics; from mm to nm scale, from Dawber et al. (2003b) 4.”
Physics-Based Circuit-Compatible SPICE Model for Ferroelectric Transistors (2016, background): “We assume the charge density of the contact (ρC O N ) to be exponentially decaying along the contact thickness (TM ) with a screening length λ [10].”
Domain wall nanoelectronics (2012, background): “…can partly screen this depolarization field and, although the screening is never perfect (Batra and Silverman, 1972; Dawber, Jung, and Scott, 2003; Dawber et al., 2003; Stengel and Spaldin, 2006), good electrodes can stabilize ferroelectricity down to films just a few unit cells thick (Junquera…”