Electric properties of alkali metal doped potassium niobate crystals

Electric properties of alkali metal doped potassium niobate crystals

Alkali metal (Na, Rb or Cs) doped KNbO 3 single crystals are grown using an original pulling down method by means of co-doping with Na (small ionic size), Rb (large ionic sizes) or Cs (large ionic sizes) into KNbO 3. Single-phase crystals are successfully grown with orthorhombic system at room tempe...

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Veröffentlicht in:Ceramics international 2012, Vol.38, p.S109-S112
Hauptverfasser: Kimura, H., Tanahashi, R., Zhao, H.Y., Yao, Q.W., Cheng, Z.X., Wang, X.L.
Format: Artikel
Sprache:eng
Schlagworte:
Alkali metals
B. Fibers
C. Dielectric properties
C. Impedance
Ceramics
Crystal pulling
Crystals
D. Niobates
Dielectric constant
Electrical properties
Impedance
Potassium niobates
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Beschreibung
Zusammenfassung:Alkali metal (Na, Rb or Cs) doped KNbO 3 single crystals are grown using an original pulling down method by means of co-doping with Na (small ionic size), Rb (large ionic sizes) or Cs (large ionic sizes) into KNbO 3. Single-phase crystals are successfully grown with orthorhombic system at room temperature, for all the pure and doped KNbO 3. Their electric properties, such as the dielectric constant and the impedance, are found to be changed according to the co-doping elements.
ISSN:0272-8842
1873-3956
DOI:10.1016/j.ceramint.2011.04.061