Title :
Preparation of Ferroelectric NaNbO3 Thin Films on MgO Substrate by Pulsed Laser Deposition
Author :
Oda, S. ; Saito, T. ; Wada, T. ; Adachi, H.
Author_Institution :
Ryukoku Univ., Otsu
Abstract :
We have successfully fabricated good quality NaNbO3 films on MgO substrate by pulsed laser deposition by using K-Ta-O (KTO) buffer layer. SrRuO3 (SRO) lower electrode layer was deposited on KTO/(100)MgO substrate and then the NaNbO3 film was deposited. X-ray diffraction showed that the NaNbO3 film was epitaxially grown on a (100)SRO/KTO/(100)MgO substrate. The P-E hysteresis loop of the NaNbO3 film was characteristic of ferroelectric behavior. The crystallographic and dielectric properties are discussed with a comparison of those of the NaNbO3 films epitaxially grown on (100)SrTiO3 substrate.
Keywords :
X-ray diffraction; buffer layers; dielectric hysteresis; ferroelectric thin films; magnesium compounds; pulsed laser deposition; sodium compounds; strontium compounds; substrates; K-Ta-O buffer layer; NaNbO3; P-E hysteresis loop; SRO lower electrode layer; SrRuO3-KTaO-MgO; X-ray diffraction; crystallographic properties; dielectric properties; epitaxial growth; ferroelectric behavior; ferroelectric thin films; pulsed laser deposition; Buffer layers; Dielectric substrates; Electrodes; Ferroelectric films; Ferroelectric materials; Hysteresis; Optical pulses; Pulsed laser deposition; X-ray diffraction; X-ray lasers;
Conference_Titel :
Applications of Ferroelectrics, 2007. ISAF 2007. Sixteenth IEEE International Symposium on
Conference_Location :
Nara
Print_ISBN :
978-1-4244-1334-8
Electronic_ISBN :
1099-4734
DOI :
10.1109/ISAF.2007.4393182
