Scott, J. F. (2005) Dimensional effiects on ferroelectrics: Ultra-thin single crystals, nanotubes, nano-rods, and nano-ribbons. Ferroelectrics, 316. pp. 13-21. DOI 10.1080/00150190590963084Full text not available from this repository.
A discussion is presented of nano-scale ferroelectric devices. Nano-ribbons exhibit an “extra” relaxation process with an 0.20 ± 0.01 eV activation energy attributed to OH hydroxyl ion reorientation. Barium titanate single crystals down to 65-nm are characterized by bulk properties, and broadening of dielectric peaks ε(T) versus temperature attributed by others to intrinsic depolarization effects are instead shown to be extrinsic, due to oxygen vacancy gradients, in accord with the recent models of Catalan et al. and of Bratkovsky and Levanyuk. Similar transitions in barium strontium titanate (BST) thin films are shown to be reentrant (only upon warming from T < 50 K) and limited by kinetics, not thermodynamic equilibria.
|Uncontrolled Keywords:||2005 AREP 2005 P IA49|
|Subjects:||03 - Mineral Sciences|
|Divisions:||03 - Mineral Sciences|
|Journal or Publication Title:||Ferroelectrics|
|Page Range:||pp. 13-21|
|Depositing User:||Sarah Humbert|
|Date Deposited:||18 Aug 2010 15:38|
|Last Modified:||23 Jul 2013 09:59|
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