Wenbo Yan et al 2006 J. Phys. D: Appl. Phys. 39 4245 doi:10.1088/0022-3727/39/19/018
The electrostatic depinning mechanism of domain wall for near-stoichiometric lithium niobate crystals
Wenbo Yan1,2, Lihong Shi5, Yongfa Kong2,6, Yufang Wang4, Hongde Liu2, Jingjun Xu2, Shaolin Chen3, Ling Zhang3, Ziheng Huang3, Shiguo Liu3 and Guangyin Zhang3
Show affiliationsWe studied theoretically the pinning–depinning transition of the domain wall on the surface of near-stoichiometric lithium niobate (NSLN) crystals. Based on the analysis of electrostatic interaction between the electrode and the sample surface, the detailed depinning mechanism of the domain wall at the pinning defect 
was shown. Using the classical shell-model, the critical parameter θc for the domain wall at the reversal of was estimated to be 11° and the domain wall energy per unit area for NSLN crystals was also calculated roughly as 1.3 J m−2.
- PACS
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77.80.Dj Domain structure; hysteresis
61.72.J- Point defects and defect clusters
77.84.Dy Niobates, titanates, tantalates, PZT ceramics, etc.
- Subjects
- Dates
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Issue 19 (7 October 2006)
Received 3 November 2005, in final form 23 July 2006
Published 15 September 2006
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The electrostatic depinning mechanism of domain wall for near-stoichiometric lithium niobate crystals
Wenbo Yan et al 2006 J. Phys. D: Appl. Phys. 39 4245
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