Zinc oxide doping effects in polarization switching of lithium niobate
Appl. Phys. Lett. 78, 4 (2001); doi:10.1063/1.1336815
Issue Date: 1 January 2001
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We report a pulsed-field analysis on the 180° domain reversal process in Z-cut congruent grown lithium niobate (LiNbO3) doped with zinc oxide at concentration CZnO>5 mol %. The polarization switching field is found to decrease with the ZnO doping with a threshold (Eth) and internal (Eint) field as low as 2.5 and 0.5 kV/mm, respectively, resultant on 8 mol % ZnO doped LiNbO3. The substantial decrease of Eth and Eint is ascribed to the suppression of nonstoichiometric point defects by the substitution of Zn2+ ions in the lattice site. ©2001 American Institute of Physics.
| History: | Received 21 June 2000; accepted 2 November 2000 |
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KEYWORDS and PACS
lithium compounds,
zinc compounds,
ferroelectric materials,
ferroelectric switching,
dielectric polarisation,
optical materials,
point defects,
electric domains,
impurity-defect interactions
- 77.84.Dy
Dielectrics, piezoelectrics, and ferroelectrics and their properties Dielectric, piezoelectric, ferroelectric, and antiferroelectric materials Niobates, titanates, tantalates, PZT ceramics, etc. - 77.80.Fm
Dielectrics, piezoelectrics, and ferroelectrics and their properties Ferroelectricity and antiferroelectricity Switching phenomena - 77.22.Ej
Dielectrics, piezoelectrics, and ferroelectrics and their properties Dielectric properties of solids and liquids Polarization and depolarization - 42.70.Mp
Optics Optical materials Nonlinear optical crystals - 77.80.Dj
Dielectrics, piezoelectrics, and ferroelectrics and their properties Ferroelectricity and antiferroelectricity Domain structure; hysteresis - 61.72.Yx
Structure of solids and liquids; crystallography Defects and impurities in crystals; microstructure Interaction between different crystal defects; gettering effect - YEAR: 2001
RELATED DATABASES
PUBLICATION DATA
0003-6951 (print)
1077-3118 (online)
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